Finding the Fourth Proportional to 660,892.42, 912,033.90 and 359,086.42

Step by Step Solution

1. Step 1: Write the proportion equation
   660,892.42 : 912,033.90 = 359,086.42 : x
2. Step 2: Convert to fraction form
   660,892.42/912,033.90 = 359,086.42/x
3. Step 3: Cross multiply
   660,892.42x = 912,033.90 × 359,086.42
4. Step 4: Simplify right side
   660,892.42x = 327,498,988,069.64
5. Step 5: Solve for x
   x = 327,498,988,069.64/660,892.42
6. Step 6: Final answer
   x = 495,540.54