Finding the Fourth Proportional to 123,058.92, 169,863.50 and 72,088

Step by Step Solution

1. Step 1: Write the proportion equation
   123,058.92 : 169,863.50 = 72,088 : x
2. Step 2: Convert to fraction form
   123,058.92/169,863.50 = 72,088/x
3. Step 3: Cross multiply
   123,058.92x = 169,863.50 × 72,088
4. Step 4: Simplify right side
   123,058.92x = 12,245,119,988
5. Step 5: Solve for x
   x = 12,245,119,988/123,058.92
6. Step 6: Final answer
   x = 99,506.16