Finding the Fourth Proportional to 11,489.55, 17,240.00 and 5,571.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,489.55 : 17,240.00 = 5,571.42 : x
2. Step 2: Convert to fraction form
   11,489.55/17,240.00 = 5,571.42/x
3. Step 3: Cross multiply
   11,489.55x = 17,240.00 × 5,571.42
4. Step 4: Simplify right side
   11,489.55x = 96,051,252.94
5. Step 5: Solve for x
   x = 96,051,252.94/11,489.55
6. Step 6: Final answer
   x = 8,359.88