Finding the Fourth Proportional to 123,542.52, 170,299.98 and 75,707.16

Step by Step Solution

1. Step 1: Write the proportion equation
   123,542.52 : 170,299.98 = 75,707.16 : x
2. Step 2: Convert to fraction form
   123,542.52/170,299.98 = 75,707.16/x
3. Step 3: Cross multiply
   123,542.52x = 170,299.98 × 75,707.16
4. Step 4: Simplify right side
   123,542.52x = 12,892,927,833.86
5. Step 5: Solve for x
   x = 12,892,927,833.86/123,542.52
6. Step 6: Final answer
   x = 104,360.25