Finding the Fourth Proportional to 22,644.86, 31,249.33 and 12,572.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,644.86 : 31,249.33 = 12,572.98 : x
2. Step 2: Convert to fraction form
   22,644.86/31,249.33 = 12,572.98/x
3. Step 3: Cross multiply
   22,644.86x = 31,249.33 × 12,572.98
4. Step 4: Simplify right side
   22,644.86x = 392,897,091.55
5. Step 5: Solve for x
   x = 392,897,091.55/22,644.86
6. Step 6: Final answer
   x = 17,350.39