Step 1 :Leon has \(3\) pairs of shoes, \(4\) pairs of pants, and \(3\) shirts.
Step 2 :To find the total number of combinations, we need to multiply the number of choices for each clothing item: \(3 \times 4 \times 3 = 36\)
Step 3 :\(\boxed{36}\) different combinations are possible for Leon to wear to the dance.