Preacher Math: Prophetic Probabilities (Part III)

In Part I we looked at the basic criteria for any prophecy, and in Part II we made the requirements a little more strict to differentiate the impressive prophecies from the mundane.
Today we will examine a single popular prophecy that Jesus is said to have fulfilled, and we will start with the passage describing the event in Matthew 21.
Matthew 21:1-7 (New King James Version)
1 Now when they drew near Jerusalem, and came to Bethphage, at the Mount of Olives, then Jesus sent two disciples, 2 saying to them, “Go into the village opposite you, and immediately you will find a donkey tied, and a colt with her. Loose them and bring them to Me. 3 And if anyone says anything to you, you shall say, ‘The Lord has need of them,’ and immediately he will send them.”
4 All this was done that it might be fulfilled which was spoken by the prophet, saying:
5 “Tell the daughter of Zion, ‘Behold, your King is coming to you, Lowly, and sitting on a donkey, A colt, the foal of a donkey.’”6 So the disciples went and did as Jesus commanded them. 7 They brought the donkey and the colt, laid their clothes on them, and set Him on them.

