Finding the Fourth Proportional to 25,108.28, 34,648.16 and 15,042.31

Step by Step Solution

1. Step 1: Write the proportion equation
   25,108.28 : 34,648.16 = 15,042.31 : x
2. Step 2: Convert to fraction form
   25,108.28/34,648.16 = 15,042.31/x
3. Step 3: Cross multiply
   25,108.28x = 34,648.16 × 15,042.31
4. Step 4: Simplify right side
   25,108.28x = 521,188,201.82
5. Step 5: Solve for x
   x = 521,188,201.82/25,108.28
6. Step 6: Final answer
   x = 20,757.62