Finding the Fourth Proportional to 62,685.57, 86,457.81 and 43,565.12

Step by Step Solution

1. Step 1: Write the proportion equation
   62,685.57 : 86,457.81 = 43,565.12 : x
2. Step 2: Convert to fraction form
   62,685.57/86,457.81 = 43,565.12/x
3. Step 3: Cross multiply
   62,685.57x = 86,457.81 × 43,565.12
4. Step 4: Simplify right side
   62,685.57x = 3,766,544,867.59
5. Step 5: Solve for x
   x = 3,766,544,867.59/62,685.57
6. Step 6: Final answer
   x = 60,086.31