Finding the Fourth Proportional to 22,715.52, 31,362.72 and 14,220.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,715.52 : 31,362.72 = 14,220.96 : x
2. Step 2: Convert to fraction form
   22,715.52/31,362.72 = 14,220.96/x
3. Step 3: Cross multiply
   22,715.52x = 31,362.72 × 14,220.96
4. Step 4: Simplify right side
   22,715.52x = 446,007,986.61
5. Step 5: Solve for x
   x = 446,007,986.61/22,715.52
6. Step 6: Final answer
   x = 19,634.50