Finding the Fourth Proportional to 124,147.56, 186,238.85 and 39,879.47

Step by Step Solution

1. Step 1: Write the proportion equation
   124,147.56 : 186,238.85 = 39,879.47 : x
2. Step 2: Convert to fraction form
   124,147.56/186,238.85 = 39,879.47/x
3. Step 3: Cross multiply
   124,147.56x = 186,238.85 × 39,879.47
4. Step 4: Simplify right side
   124,147.56x = 7,427,105,500.82
5. Step 5: Solve for x
   x = 7,427,105,500.82/124,147.56
6. Step 6: Final answer
   x = 59,824.82