Finding the Fourth Proportional to 9,689.28, 13,370.04 and 5,496.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,689.28 : 13,370.04 = 5,496.72 : x
2. Step 2: Convert to fraction form
   9,689.28/13,370.04 = 5,496.72/x
3. Step 3: Cross multiply
   9,689.28x = 13,370.04 × 5,496.72
4. Step 4: Simplify right side
   9,689.28x = 73,491,366.27
5. Step 5: Solve for x
   x = 73,491,366.27/9,689.28
6. Step 6: Final answer
   x = 7,584.81