Finding the Fourth Proportional to 42,659.57, 58,859.42 and 25,658.35

Step by Step Solution

1. Step 1: Write the proportion equation
   42,659.57 : 58,859.42 = 25,658.35 : x
2. Step 2: Convert to fraction form
   42,659.57/58,859.42 = 25,658.35/x
3. Step 3: Cross multiply
   42,659.57x = 58,859.42 × 25,658.35
4. Step 4: Simplify right side
   42,659.57x = 1,510,235,323.72
5. Step 5: Solve for x
   x = 1,510,235,323.72/42,659.57
6. Step 6: Final answer
   x = 35,402.03