Finding the Fourth Proportional to 42,395.89, 58,486.11 and 25,391.97

Step by Step Solution

1. Step 1: Write the proportion equation
   42,395.89 : 58,486.11 = 25,391.97 : x
2. Step 2: Convert to fraction form
   42,395.89/58,486.11 = 25,391.97/x
3. Step 3: Cross multiply
   42,395.89x = 58,486.11 × 25,391.97
4. Step 4: Simplify right side
   42,395.89x = 1,485,077,550.54
5. Step 5: Solve for x
   x = 1,485,077,550.54/42,395.89
6. Step 6: Final answer
   x = 35,028.81