Finding the Fourth Proportional to 62,614.20, 86,440.86 and 42,578.04

Step by Step Solution

1. Step 1: Write the proportion equation
   62,614.20 : 86,440.86 = 42,578.04 : x
2. Step 2: Convert to fraction form
   62,614.20/86,440.86 = 42,578.04/x
3. Step 3: Cross multiply
   62,614.20x = 86,440.86 × 42,578.04
4. Step 4: Simplify right side
   62,614.20x = 3,680,482,394.71
5. Step 5: Solve for x
   x = 3,680,482,394.71/62,614.20
6. Step 6: Final answer
   x = 58,780.31