Finding the Fourth Proportional to 22,864.18, 31,553.80 and 12,792.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,864.18 : 31,553.80 = 12,792.02 : x
2. Step 2: Convert to fraction form
   22,864.18/31,553.80 = 12,792.02/x
3. Step 3: Cross multiply
   22,864.18x = 31,553.80 × 12,792.02
4. Step 4: Simplify right side
   22,864.18x = 403,636,776.72
5. Step 5: Solve for x
   x = 403,636,776.72/22,864.18
6. Step 6: Final answer
   x = 17,653.67