Finding the Fourth Proportional to 83,105.82, 124,728.47 and 43,149.33

Step by Step Solution

1. Step 1: Write the proportion equation
   83,105.82 : 124,728.47 = 43,149.33 : x
2. Step 2: Convert to fraction form
   83,105.82/124,728.47 = 43,149.33/x
3. Step 3: Cross multiply
   83,105.82x = 124,728.47 × 43,149.33
4. Step 4: Simplify right side
   83,105.82x = 5,381,949,696.68
5. Step 5: Solve for x
   x = 5,381,949,696.68/83,105.82
6. Step 6: Final answer
   x = 64,760.20