Finding the Fourth Proportional to 660,947.82, 912,113.76 and 359,141.82

Step by Step Solution

1. Step 1: Write the proportion equation
   660,947.82 : 912,113.76 = 359,141.82 : x
2. Step 2: Convert to fraction form
   660,947.82/912,113.76 = 359,141.82/x
3. Step 3: Cross multiply
   660,947.82x = 912,113.76 × 359,141.82
4. Step 4: Simplify right side
   660,947.82x = 327,578,195,813.44
5. Step 5: Solve for x
   x = 327,578,195,813.44/660,947.82
6. Step 6: Final answer
   x = 495,618.85