Finding the Fourth Proportional to 660,958.88, 912,128.72 and 359,152.88

Step by Step Solution

1. Step 1: Write the proportion equation
   660,958.88 : 912,128.72 = 359,152.88 : x
2. Step 2: Convert to fraction form
   660,958.88/912,128.72 = 359,152.88/x
3. Step 3: Cross multiply
   660,958.88x = 912,128.72 × 359,152.88
4. Step 4: Simplify right side
   660,958.88x = 327,593,656,718.71
5. Step 5: Solve for x
   x = 327,593,656,718.71/660,958.88
6. Step 6: Final answer
   x = 495,633.94