Finding the Fourth Proportional to 949,086.57, 1,309,739.51 and 519,366.72

Step by Step Solution

1. Step 1: Write the proportion equation
   949,086.57 : 1,309,739.51 = 519,366.72 : x
2. Step 2: Convert to fraction form
   949,086.57/1,309,739.51 = 519,366.72/x
3. Step 3: Cross multiply
   949,086.57x = 1,309,739.51 × 519,366.72
4. Step 4: Simplify right side
   949,086.57x = 680,235,110,766.27
5. Step 5: Solve for x
   x = 680,235,110,766.27/949,086.57
6. Step 6: Final answer
   x = 716,726.09