Finding the Fourth Proportional to 201,470.31, 278,033.72 and 110,831.31

Step by Step Solution

1. Step 1: Write the proportion equation
   201,470.31 : 278,033.72 = 110,831.31 : x
2. Step 2: Convert to fraction form
   201,470.31/278,033.72 = 110,831.31/x
3. Step 3: Cross multiply
   201,470.31x = 278,033.72 × 110,831.31
4. Step 4: Simplify right side
   201,470.31x = 30,814,840,857.62
5. Step 5: Solve for x
   x = 30,814,840,857.62/201,470.31
6. Step 6: Final answer
   x = 152,949.79