Finding the Fourth Proportional to 42,320.85, 58,387.31 and 25,325.57

Step by Step Solution

1. Step 1: Write the proportion equation
   42,320.85 : 58,387.31 = 25,325.57 : x
2. Step 2: Convert to fraction form
   42,320.85/58,387.31 = 25,325.57/x
3. Step 3: Cross multiply
   42,320.85x = 58,387.31 × 25,325.57
4. Step 4: Simplify right side
   42,320.85x = 1,478,692,020.83
5. Step 5: Solve for x
   x = 1,478,692,020.83/42,320.85
6. Step 6: Final answer
   x = 34,940.04