Finding the Fourth Proportional to 86,123.31, 118,861.10 and 48,397.53

Step by Step Solution

1. Step 1: Write the proportion equation
   86,123.31 : 118,861.10 = 48,397.53 : x
2. Step 2: Convert to fraction form
   86,123.31/118,861.10 = 48,397.53/x
3. Step 3: Cross multiply
   86,123.31x = 118,861.10 × 48,397.53
4. Step 4: Simplify right side
   86,123.31x = 5,752,583,411.10
5. Step 5: Solve for x
   x = 5,752,583,411.10/86,123.31
6. Step 6: Final answer
   x = 66,794.73