Finding the Fourth Proportional to 581,109.68, 800,077.56 and 495,884.72

Step by Step Solution

1. Step 1: Write the proportion equation
   581,109.68 : 800,077.56 = 495,884.72 : x
2. Step 2: Convert to fraction form
   581,109.68/800,077.56 = 495,884.72/x
3. Step 3: Cross multiply
   581,109.68x = 800,077.56 × 495,884.72
4. Step 4: Simplify right side
   581,109.68x = 396,746,236,818.88
5. Step 5: Solve for x
   x = 396,746,236,818.88/581,109.68
6. Step 6: Final answer
   x = 682,738.99