Finding the Fourth Proportional to 10,287.69, 14,197.03 and 5,571.97

Step by Step Solution

1. Step 1: Write the proportion equation
   10,287.69 : 14,197.03 = 5,571.97 : x
2. Step 2: Convert to fraction form
   10,287.69/14,197.03 = 5,571.97/x
3. Step 3: Cross multiply
   10,287.69x = 14,197.03 × 5,571.97
4. Step 4: Simplify right side
   10,287.69x = 79,105,397.39
5. Step 5: Solve for x
   x = 79,105,397.39/10,287.69
6. Step 6: Final answer
   x = 7,689.33