Finding the Fourth Proportional to 22,633.71, 31,234.05 and 12,561.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,633.71 : 31,234.05 = 12,561.57 : x
2. Step 2: Convert to fraction form
   22,633.71/31,234.05 = 12,561.57/x
3. Step 3: Cross multiply
   22,633.71x = 31,234.05 × 12,561.57
4. Step 4: Simplify right side
   22,633.71x = 392,348,705.46
5. Step 5: Solve for x
   x = 392,348,705.46/22,633.71
6. Step 6: Final answer
   x = 17,334.71