Finding the Fourth Proportional to 83,831.69, 125,745.71 and 39,433.83

Step by Step Solution

1. Step 1: Write the proportion equation
   83,831.69 : 125,745.71 = 39,433.83 : x
2. Step 2: Convert to fraction form
   83,831.69/125,745.71 = 39,433.83/x
3. Step 3: Cross multiply
   83,831.69x = 125,745.71 × 39,433.83
4. Step 4: Simplify right side
   83,831.69x = 4,958,634,754.20
5. Step 5: Solve for x
   x = 4,958,634,754.20/83,831.69
6. Step 6: Final answer
   x = 59,149.89