Finding the Fourth Proportional to 123,574.88, 170,520.72 and 75,830.24

Step by Step Solution

1. Step 1: Write the proportion equation
   123,574.88 : 170,520.72 = 75,830.24 : x
2. Step 2: Convert to fraction form
   123,574.88/170,520.72 = 75,830.24/x
3. Step 3: Cross multiply
   123,574.88x = 170,520.72 × 75,830.24
4. Step 4: Simplify right side
   123,574.88x = 12,930,627,122.57
5. Step 5: Solve for x
   x = 12,930,627,122.57/123,574.88
6. Step 6: Final answer
   x = 104,637.99