Finding the Fourth Proportional to 123,081.10, 169,852.16 and 71,408.24

Step by Step Solution

1. Step 1: Write the proportion equation
   123,081.10 : 169,852.16 = 71,408.24 : x
2. Step 2: Convert to fraction form
   123,081.10/169,852.16 = 71,408.24/x
3. Step 3: Cross multiply
   123,081.10x = 169,852.16 × 71,408.24
4. Step 4: Simplify right side
   123,081.10x = 12,128,843,805.80
5. Step 5: Solve for x
   x = 12,128,843,805.80/123,081.10
6. Step 6: Final answer
   x = 98,543.51