'Fourth' in the Bible

On the twenty and fourth day of the eleventh month, (it is the month of Sebat,) in the second year of Darius, hath a word of Jehovah been unto Zechariah, son of Berechiah, son of Iddo, the prophet, saying:

and in the third chariot white horses, and in the fourth chariot strong grisled horses.

And it cometh to pass, in the fourth year of Darius the king hath a word of Jehovah been unto Zechariah, in the fourth of the ninth month, in Chisleu.

Thus said Jehovah of Hosts: The fast of the fourth, and the fast of the fifth, and the fast of the seventh, and the fast of the tenth months, are to the house of Judah for joy and for rejoicing, and for pleasant appointed seasons, and the truth and the peace they have loved.