Finding the Fourth Proportional to 22,641.30, 31,248.72 and 12,572.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,641.30 : 31,248.72 = 12,572.96 : x
2. Step 2: Convert to fraction form
   22,641.30/31,248.72 = 12,572.96/x
3. Step 3: Cross multiply
   22,641.30x = 31,248.72 × 12,572.96
4. Step 4: Simplify right side
   22,641.30x = 392,888,906.61
5. Step 5: Solve for x
   x = 392,888,906.61/22,641.30
6. Step 6: Final answer
   x = 17,352.75