Finding the Fourth Proportional to 16,638.59, 22,962.18 and 9,085.62

Step by Step Solution

1. Step 1: Write the proportion equation
   16,638.59 : 22,962.18 = 9,085.62 : x
2. Step 2: Convert to fraction form
   16,638.59/22,962.18 = 9,085.62/x
3. Step 3: Cross multiply
   16,638.59x = 22,962.18 × 9,085.62
4. Step 4: Simplify right side
   16,638.59x = 208,625,645.99
5. Step 5: Solve for x
   x = 208,625,645.99/16,638.59
6. Step 6: Final answer
   x = 12,538.66