Finding the Fourth Proportional to 22,644.60, 31,248.98 and 12,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,644.60 : 31,248.98 = 12,572.72 : x
2. Step 2: Convert to fraction form
   22,644.60/31,248.98 = 12,572.72/x
3. Step 3: Cross multiply
   22,644.60x = 31,248.98 × 12,572.72
4. Step 4: Simplify right side
   22,644.60x = 392,884,675.83
5. Step 5: Solve for x
   x = 392,884,675.83/22,644.60
6. Step 6: Final answer
   x = 17,350.04