Finding the Fourth Proportional to 21,082.62, 31,624.17 and 5,500.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,082.62 : 31,624.17 = 5,500.38 : x
2. Step 2: Convert to fraction form
   21,082.62/31,624.17 = 5,500.38/x
3. Step 3: Cross multiply
   21,082.62x = 31,624.17 × 5,500.38
4. Step 4: Simplify right side
   21,082.62x = 173,944,952.18
5. Step 5: Solve for x
   x = 173,944,952.18/21,082.62
6. Step 6: Final answer
   x = 8,250.63