Finding the Fourth Proportional to 389,700.38, 584,567.60 and 123,480.51

Step by Step Solution

1. Step 1: Write the proportion equation
   389,700.38 : 584,567.60 = 123,480.51 : x
2. Step 2: Convert to fraction form
   389,700.38/584,567.60 = 123,480.51/x
3. Step 3: Cross multiply
   389,700.38x = 584,567.60 × 123,480.51
4. Step 4: Simplify right side
   389,700.38x = 72,182,704,760.07
5. Step 5: Solve for x
   x = 72,182,704,760.07/389,700.38
6. Step 6: Final answer
   x = 185,226.16