Finding the Fourth Proportional to 124,105.77, 186,128.01 and 57,481.92

Step by Step Solution

1. Step 1: Write the proportion equation
   124,105.77 : 186,128.01 = 57,481.92 : x
2. Step 2: Convert to fraction form
   124,105.77/186,128.01 = 57,481.92/x
3. Step 3: Cross multiply
   124,105.77x = 186,128.01 × 57,481.92
4. Step 4: Simplify right side
   124,105.77x = 10,698,995,380.58
5. Step 5: Solve for x
   x = 10,698,995,380.58/124,105.77
6. Step 6: Final answer
   x = 86,208.69