Finding the Fourth Proportional to 85,871.62, 118,491.55 and 47,630.71

Step by Step Solution

1. Step 1: Write the proportion equation
   85,871.62 : 118,491.55 = 47,630.71 : x
2. Step 2: Convert to fraction form
   85,871.62/118,491.55 = 47,630.71/x
3. Step 3: Cross multiply
   85,871.62x = 118,491.55 × 47,630.71
4. Step 4: Simplify right side
   85,871.62x = 5,643,836,655.50
5. Step 5: Solve for x
   x = 5,643,836,655.50/85,871.62
6. Step 6: Final answer
   x = 65,724.12