Finding the Fourth Proportional to 123,015.18, 169,729.56 and 75,251.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,015.18 : 169,729.56 = 75,251.10 : x
2. Step 2: Convert to fraction form
   123,015.18/169,729.56 = 75,251.10/x
3. Step 3: Cross multiply
   123,015.18x = 169,729.56 × 75,251.10
4. Step 4: Simplify right side
   123,015.18x = 12,772,336,092.52
5. Step 5: Solve for x
   x = 12,772,336,092.52/123,015.18
6. Step 6: Final answer
   x = 103,827.32