Finding the Fourth Proportional to 123,353.18, 170,231.52 and 75,597.31

Step by Step Solution

1. Step 1: Write the proportion equation
   123,353.18 : 170,231.52 = 75,597.31 : x
2. Step 2: Convert to fraction form
   123,353.18/170,231.52 = 75,597.31/x
3. Step 3: Cross multiply
   123,353.18x = 170,231.52 × 75,597.31
4. Step 4: Simplify right side
   123,353.18x = 12,869,044,989.21
5. Step 5: Solve for x
   x = 12,869,044,989.21/123,353.18
6. Step 6: Final answer
   x = 104,326.82