Finding the Fourth Proportional to 71,831.97, 107,722.04 and 30,282.21

Step by Step Solution

1. Step 1: Write the proportion equation
   71,831.97 : 107,722.04 = 30,282.21 : x
2. Step 2: Convert to fraction form
   71,831.97/107,722.04 = 30,282.21/x
3. Step 3: Cross multiply
   71,831.97x = 107,722.04 × 30,282.21
4. Step 4: Simplify right side
   71,831.97x = 3,262,061,285.50
5. Step 5: Solve for x
   x = 3,262,061,285.50/71,831.97
6. Step 6: Final answer
   x = 45,412.39