Finding the Fourth Proportional to 42,287.06, 58,356.15 and 25,520.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42,287.06 : 58,356.15 = 25,520.06 : x
2. Step 2: Convert to fraction form
   42,287.06/58,356.15 = 25,520.06/x
3. Step 3: Cross multiply
   42,287.06x = 58,356.15 × 25,520.06
4. Step 4: Simplify right side
   42,287.06x = 1,489,252,499.56
5. Step 5: Solve for x
   x = 1,489,252,499.56/42,287.06
6. Step 6: Final answer
   x = 35,217.69