Finding the Fourth Proportional to 123,158.46, 169,976.31 and 89,279.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,158.46 : 169,976.31 = 89,279.10 : x
2. Step 2: Convert to fraction form
   123,158.46/169,976.31 = 89,279.10/x
3. Step 3: Cross multiply
   123,158.46x = 169,976.31 × 89,279.10
4. Step 4: Simplify right side
   123,158.46x = 15,175,331,978.12
5. Step 5: Solve for x
   x = 15,175,331,978.12/123,158.46
6. Step 6: Final answer
   x = 123,217.94