Finding the Fourth Proportional to 22,644.34, 31,248.72 and 12,572.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,644.34 : 31,248.72 = 12,572.18 : x
2. Step 2: Convert to fraction form
   22,644.34/31,248.72 = 12,572.18/x
3. Step 3: Cross multiply
   22,644.34x = 31,248.72 × 12,572.18
4. Step 4: Simplify right side
   22,644.34x = 392,864,532.61
5. Step 5: Solve for x
   x = 392,864,532.61/22,644.34
6. Step 6: Final answer
   x = 17,349.35