Finding the Fourth Proportional to 21,180.24, 31,775.72 and 14,952.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,180.24 : 31,775.72 = 14,952.42 : x
2. Step 2: Convert to fraction form
   21,180.24/31,775.72 = 14,952.42/x
3. Step 3: Cross multiply
   21,180.24x = 31,775.72 × 14,952.42
4. Step 4: Simplify right side
   21,180.24x = 475,123,836.48
5. Step 5: Solve for x
   x = 475,123,836.48/21,180.24
6. Step 6: Final answer
   x = 22,432.41