Finding the Fourth Proportional to 86,631, 119,549.48 and 48,391.23

Step by Step Solution

1. Step 1: Write the proportion equation
   86,631 : 119,549.48 = 48,391.23 : x
2. Step 2: Convert to fraction form
   86,631/119,549.48 = 48,391.23/x
3. Step 3: Cross multiply
   86,631x = 119,549.48 × 48,391.23
4. Step 4: Simplify right side
   86,631x = 5,785,146,141.10
5. Step 5: Solve for x
   x = 5,785,146,141.10/86,631
6. Step 6: Final answer
   x = 66,779.17