Finding the Fourth Proportional to 22,737.64, 31,150.71 and 21,885.39

Step by Step Solution

1. Step 1: Write the proportion equation
   22,737.64 : 31,150.71 = 21,885.39 : x
2. Step 2: Convert to fraction form
   22,737.64/31,150.71 = 21,885.39/x
3. Step 3: Cross multiply
   22,737.64x = 31,150.71 × 21,885.39
4. Step 4: Simplify right side
   22,737.64x = 681,745,349.52
5. Step 5: Solve for x
   x = 681,745,349.52/22,737.64
6. Step 6: Final answer
   x = 29,983.12