Finding the Fourth Proportional to 9,105.66, 12,568.18 and 5,571.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,105.66 : 12,568.18 = 5,571.82 : x
2. Step 2: Convert to fraction form
   9,105.66/12,568.18 = 5,571.82/x
3. Step 3: Cross multiply
   9,105.66x = 12,568.18 × 5,571.82
4. Step 4: Simplify right side
   9,105.66x = 70,027,636.69
5. Step 5: Solve for x
   x = 70,027,636.69/9,105.66
6. Step 6: Final answer
   x = 7,690.56