Finding the Fourth Proportional to 83,223.34, 124,831.77 and 45,857.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,223.34 : 124,831.77 = 45,857.50 : x
2. Step 2: Convert to fraction form
   83,223.34/124,831.77 = 45,857.50/x
3. Step 3: Cross multiply
   83,223.34x = 124,831.77 × 45,857.50
4. Step 4: Simplify right side
   83,223.34x = 5,724,472,892.78
5. Step 5: Solve for x
   x = 5,724,472,892.78/83,223.34
6. Step 6: Final answer
   x = 68,784.46