Finding the Fourth Proportional to 300,831.96, 451,425.32 and 111,425.37

Step by Step Solution

1. Step 1: Write the proportion equation
   300,831.96 : 451,425.32 = 111,425.37 : x
2. Step 2: Convert to fraction form
   300,831.96/451,425.32 = 111,425.37/x
3. Step 3: Cross multiply
   300,831.96x = 451,425.32 × 111,425.37
4. Step 4: Simplify right side
   300,831.96x = 50,300,233,308.37
5. Step 5: Solve for x
   x = 50,300,233,308.37/300,831.96
6. Step 6: Final answer
   x = 167,203.75