Finding the Fourth Proportional to 16,642.22, 22,966.31 and 9,088.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,642.22 : 22,966.31 = 9,088.61 : x
2. Step 2: Convert to fraction form
   16,642.22/22,966.31 = 9,088.61/x
3. Step 3: Cross multiply
   16,642.22x = 22,966.31 × 9,088.61
4. Step 4: Simplify right side
   16,642.22x = 208,731,834.73
5. Step 5: Solve for x
   x = 208,731,834.73/16,642.22
6. Step 6: Final answer
   x = 12,542.31