Finding the Fourth Proportional to 22,633.32, 31,233.94 and 12,561.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,633.32 : 31,233.94 = 12,561.89 : x
2. Step 2: Convert to fraction form
   22,633.32/31,233.94 = 12,561.89/x
3. Step 3: Cross multiply
   22,633.32x = 31,233.94 × 12,561.89
4. Step 4: Simplify right side
   22,633.32x = 392,357,318.55
5. Step 5: Solve for x
   x = 392,357,318.55/22,633.32
6. Step 6: Final answer
   x = 17,335.39