Finding the Fourth Proportional to 8,496.09, 12,710.88 and 5,709.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,496.09 : 12,710.88 = 5,709.42 : x
2. Step 2: Convert to fraction form
   8,496.09/12,710.88 = 5,709.42/x
3. Step 3: Cross multiply
   8,496.09x = 12,710.88 × 5,709.42
4. Step 4: Simplify right side
   8,496.09x = 72,571,752.49
5. Step 5: Solve for x
   x = 72,571,752.49/8,496.09
6. Step 6: Final answer
   x = 8,541.78