Finding the Fourth Proportional to 296,798.56, 445,202.72 and 83,571.61

Step by Step Solution

1. Step 1: Write the proportion equation
   296,798.56 : 445,202.72 = 83,571.61 : x
2. Step 2: Convert to fraction form
   296,798.56/445,202.72 = 83,571.61/x
3. Step 3: Cross multiply
   296,798.56x = 445,202.72 × 83,571.61
4. Step 4: Simplify right side
   296,798.56x = 37,206,308,086.78
5. Step 5: Solve for x
   x = 37,206,308,086.78/296,798.56
6. Step 6: Final answer
   x = 125,358.79