Finding the Fourth Proportional to 5,565.26, 8,367.90 and 5,131.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,565.26 : 8,367.90 = 5,131.81 : x
2. Step 2: Convert to fraction form
   5,565.26/8,367.90 = 5,131.81/x
3. Step 3: Cross multiply
   5,565.26x = 8,367.90 × 5,131.81
4. Step 4: Simplify right side
   5,565.26x = 42,942,472.90
5. Step 5: Solve for x
   x = 42,942,472.90/5,565.26
6. Step 6: Final answer
   x = 7,716.17