Finding the Fourth Proportional to 449,422.43, 674,086.86 and 149,870.25

Step by Step Solution

1. Step 1: Write the proportion equation
   449,422.43 : 674,086.86 = 149,870.25 : x
2. Step 2: Convert to fraction form
   449,422.43/674,086.86 = 149,870.25/x
3. Step 3: Cross multiply
   449,422.43x = 674,086.86 × 149,870.25
4. Step 4: Simplify right side
   449,422.43x = 101,025,566,229.92
5. Step 5: Solve for x
   x = 101,025,566,229.92/449,422.43
6. Step 6: Final answer
   x = 224,789.78