Finding the Fourth Proportional to 42,151.72, 58,151.10 and 25,375

Step by Step Solution

1. Step 1: Write the proportion equation
   42,151.72 : 58,151.10 = 25,375 : x
2. Step 2: Convert to fraction form
   42,151.72/58,151.10 = 25,375/x
3. Step 3: Cross multiply
   42,151.72x = 58,151.10 × 25,375
4. Step 4: Simplify right side
   42,151.72x = 1,475,584,162.50
5. Step 5: Solve for x
   x = 1,475,584,162.50/42,151.72
6. Step 6: Final answer
   x = 35,006.50