The distinct letters of the word EXTRAORDINARY are arranged in alphabetic order. Then the letter in the fifth position from left is:

Let us extract the distinct letters from the given word EXTRAORDINARY:
The unique letters present are: E, X, T, R, A, O, D, I, N, Y.

Now, let us arrange these unique letters in standard alphabetical ascending order from left to right:

1. 1st position: A
2. 2nd position: D
3. 3rd position: E
4. 4th position: I
5. 5th position: N
6. 6th position: O
7. 7th position: R
8. 8th position: T
9. 9th position: X
10. 10th position: Y

The letter in the fifth position from the left side is N.