Finding the Fourth Proportional to 123,986.27, 171,119.77 and 75,616.27

Step by Step Solution

1. Step 1: Write the proportion equation
   123,986.27 : 171,119.77 = 75,616.27 : x
2. Step 2: Convert to fraction form
   123,986.27/171,119.77 = 75,616.27/x
3. Step 3: Cross multiply
   123,986.27x = 171,119.77 × 75,616.27
4. Step 4: Simplify right side
   123,986.27x = 12,939,438,113.82
5. Step 5: Solve for x
   x = 12,939,438,113.82/123,986.27
6. Step 6: Final answer
   x = 104,361.86