Finding the Fourth Proportional to 443,422.72, 665,113.92 and 162,919.36

Step by Step Solution

1. Step 1: Write the proportion equation
   443,422.72 : 665,113.92 = 162,919.36 : x
2. Step 2: Convert to fraction form
   443,422.72/665,113.92 = 162,919.36/x
3. Step 3: Cross multiply
   443,422.72x = 665,113.92 × 162,919.36
4. Step 4: Simplify right side
   443,422.72x = 108,359,934,173.49
5. Step 5: Solve for x
   x = 108,359,934,173.49/443,422.72
6. Step 6: Final answer
   x = 244,371.63