Finding the Fourth Proportional to 42,304.92, 58,378.78 and 25,318.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,304.92 : 58,378.78 = 25,318.50 : x
2. Step 2: Convert to fraction form
   42,304.92/58,378.78 = 25,318.50/x
3. Step 3: Cross multiply
   42,304.92x = 58,378.78 × 25,318.50
4. Step 4: Simplify right side
   42,304.92x = 1,478,063,141.43
5. Step 5: Solve for x
   x = 1,478,063,141.43/42,304.92
6. Step 6: Final answer
   x = 34,938.33