Finding the Fourth Proportional to 22,517.98, 31,073.55 and 12,951.47

Step by Step Solution

1. Step 1: Write the proportion equation
   22,517.98 : 31,073.55 = 12,951.47 : x
2. Step 2: Convert to fraction form
   22,517.98/31,073.55 = 12,951.47/x
3. Step 3: Cross multiply
   22,517.98x = 31,073.55 × 12,951.47
4. Step 4: Simplify right side
   22,517.98x = 402,448,150.62
5. Step 5: Solve for x
   x = 402,448,150.62/22,517.98
6. Step 6: Final answer
   x = 17,872.30