Finding the Fourth Proportional to 42,807.11, 59,060.42 and 25,816.55

Step by Step Solution

1. Step 1: Write the proportion equation
   42,807.11 : 59,060.42 = 25,816.55 : x
2. Step 2: Convert to fraction form
   42,807.11/59,060.42 = 25,816.55/x
3. Step 3: Cross multiply
   42,807.11x = 59,060.42 × 25,816.55
4. Step 4: Simplify right side
   42,807.11x = 1,524,736,285.95
5. Step 5: Solve for x
   x = 1,524,736,285.95/42,807.11
6. Step 6: Final answer
   x = 35,618.76