Finding the Fourth Proportional to 123,357.20, 170,237.04 and 75,601.31

Step by Step Solution

1. Step 1: Write the proportion equation
   123,357.20 : 170,237.04 = 75,601.31 : x
2. Step 2: Convert to fraction form
   123,357.20/170,237.04 = 75,601.31/x
3. Step 3: Cross multiply
   123,357.20x = 170,237.04 × 75,601.31
4. Step 4: Simplify right side
   123,357.20x = 12,870,143,234.52
5. Step 5: Solve for x
   x = 12,870,143,234.52/123,357.20
6. Step 6: Final answer
   x = 104,332.32