Finding the Fourth Proportional to 123,760.64, 185,671.20 and 39,520.82

Step by Step Solution

1. Step 1: Write the proportion equation
   123,760.64 : 185,671.20 = 39,520.82 : x
2. Step 2: Convert to fraction form
   123,760.64/185,671.20 = 39,520.82/x
3. Step 3: Cross multiply
   123,760.64x = 185,671.20 × 39,520.82
4. Step 4: Simplify right side
   123,760.64x = 7,337,878,074.38
5. Step 5: Solve for x
   x = 7,337,878,074.38/123,760.64
6. Step 6: Final answer
   x = 59,290.89