Finding the Fourth Proportional to 580,131.83, 800,569.49 and 321,993.69

Step by Step Solution

1. Step 1: Write the proportion equation
   580,131.83 : 800,569.49 = 321,993.69 : x
2. Step 2: Convert to fraction form
   580,131.83/800,569.49 = 321,993.69/x
3. Step 3: Cross multiply
   580,131.83x = 800,569.49 × 321,993.69
4. Step 4: Simplify right side
   580,131.83x = 257,778,322,576.55
5. Step 5: Solve for x
   x = 257,778,322,576.55/580,131.83
6. Step 6: Final answer
   x = 444,344.39