Finding the Fourth Proportional to 22,632.86, 31,232.76 and 12,561.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,632.86 : 31,232.76 = 12,561.05 : x
2. Step 2: Convert to fraction form
   22,632.86/31,232.76 = 12,561.05/x
3. Step 3: Cross multiply
   22,632.86x = 31,232.76 × 12,561.05
4. Step 4: Simplify right side
   22,632.86x = 392,316,056.73
5. Step 5: Solve for x
   x = 392,316,056.73/22,632.86
6. Step 6: Final answer
   x = 17,333.91