Finding the Fourth Proportional to 123,496.38, 170,323.56 and 75,716.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,496.38 : 170,323.56 = 75,716.10 : x
2. Step 2: Convert to fraction form
   123,496.38/170,323.56 = 75,716.10/x
3. Step 3: Cross multiply
   123,496.38x = 170,323.56 × 75,716.10
4. Step 4: Simplify right side
   123,496.38x = 12,896,235,701.32
5. Step 5: Solve for x
   x = 12,896,235,701.32/123,496.38
6. Step 6: Final answer
   x = 104,426.02