Finding the Fourth Proportional to 5,568.71, 8,303.90 and 5,518.71

Step by Step Solution

1. Step 1: Write the proportion equation
   5,568.71 : 8,303.90 = 5,518.71 : x
2. Step 2: Convert to fraction form
   5,568.71/8,303.90 = 5,518.71/x
3. Step 3: Cross multiply
   5,568.71x = 8,303.90 × 5,518.71
4. Step 4: Simplify right side
   5,568.71x = 45,826,788.38
5. Step 5: Solve for x
   x = 45,826,788.38/5,568.71
6. Step 6: Final answer
   x = 8,229.34