Finding the Fourth Proportional to 123,726.42, 185,587.34 and 39,485.90

Step by Step Solution

1. Step 1: Write the proportion equation
   123,726.42 : 185,587.34 = 39,485.90 : x
2. Step 2: Convert to fraction form
   123,726.42/185,587.34 = 39,485.90/x
3. Step 3: Cross multiply
   123,726.42x = 185,587.34 × 39,485.90
4. Step 4: Simplify right side
   123,726.42x = 7,328,083,415.04
5. Step 5: Solve for x
   x = 7,328,083,415.04/123,726.42
6. Step 6: Final answer
   x = 59,228.12