Finding the Fourth Proportional to 660,949.82, 912,116.52 and 359,143.82

Step by Step Solution

1. Step 1: Write the proportion equation
   660,949.82 : 912,116.52 = 359,143.82 : x
2. Step 2: Convert to fraction form
   660,949.82/912,116.52 = 359,143.82/x
3. Step 3: Cross multiply
   660,949.82x = 912,116.52 × 359,143.82
4. Step 4: Simplify right side
   660,949.82x = 327,581,011,277.91
5. Step 5: Solve for x
   x = 327,581,011,277.91/660,949.82
6. Step 6: Final answer
   x = 495,621.61