Finding the Fourth Proportional to 660,949.32, 912,115.83 and 359,143.32

Step by Step Solution

1. Step 1: Write the proportion equation
   660,949.32 : 912,115.83 = 359,143.32 : x
2. Step 2: Convert to fraction form
   660,949.32/912,115.83 = 359,143.32/x
3. Step 3: Cross multiply
   660,949.32x = 912,115.83 × 359,143.32
4. Step 4: Simplify right side
   660,949.32x = 327,580,307,410.76
5. Step 5: Solve for x
   x = 327,580,307,410.76/660,949.32
6. Step 6: Final answer
   x = 495,620.92