Finding the Fourth Proportional to 8,580.89, 12,873.31 and 3,650.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,580.89 : 12,873.31 = 3,650.69 : x
2. Step 2: Convert to fraction form
   8,580.89/12,873.31 = 3,650.69/x
3. Step 3: Cross multiply
   8,580.89x = 12,873.31 × 3,650.69
4. Step 4: Simplify right side
   8,580.89x = 46,996,487.14
5. Step 5: Solve for x
   x = 46,996,487.14/8,580.89
6. Step 6: Final answer
   x = 5,476.88