Finding the Fourth Proportional to 21,442.27, 29,601.72 and 16,149.73

Step by Step Solution

1. Step 1: Write the proportion equation
   21,442.27 : 29,601.72 = 16,149.73 : x
2. Step 2: Convert to fraction form
   21,442.27/29,601.72 = 16,149.73/x
3. Step 3: Cross multiply
   21,442.27x = 29,601.72 × 16,149.73
4. Step 4: Simplify right side
   21,442.27x = 478,059,785.54
5. Step 5: Solve for x
   x = 478,059,785.54/21,442.27
6. Step 6: Final answer
   x = 22,295.20