Finding the Fourth Proportional to 42,156.80, 58,182.72 and 25,399.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,156.80 : 58,182.72 = 25,399.04 : x
2. Step 2: Convert to fraction form
   42,156.80/58,182.72 = 25,399.04/x
3. Step 3: Cross multiply
   42,156.80x = 58,182.72 × 25,399.04
4. Step 4: Simplify right side
   42,156.80x = 1,477,785,232.59
5. Step 5: Solve for x
   x = 1,477,785,232.59/42,156.80
6. Step 6: Final answer
   x = 35,054.49