Finding the Fourth Proportional to 123,399.55, 185,062.49 and 52,320.99

Step by Step Solution

1. Step 1: Write the proportion equation
   123,399.55 : 185,062.49 = 52,320.99 : x
2. Step 2: Convert to fraction form
   123,399.55/185,062.49 = 52,320.99/x
3. Step 3: Cross multiply
   123,399.55x = 185,062.49 × 52,320.99
4. Step 4: Simplify right side
   123,399.55x = 9,682,651,894.16
5. Step 5: Solve for x
   x = 9,682,651,894.16/123,399.55
6. Step 6: Final answer
   x = 78,465.86