Finding the Fourth Proportional to 9,757.92, 13,465.20 and 5,508.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,757.92 : 13,465.20 = 5,508.72 : x
2. Step 2: Convert to fraction form
   9,757.92/13,465.20 = 5,508.72/x
3. Step 3: Cross multiply
   9,757.92x = 13,465.20 × 5,508.72
4. Step 4: Simplify right side
   9,757.92x = 74,176,016.54
5. Step 5: Solve for x
   x = 74,176,016.54/9,757.92
6. Step 6: Final answer
   x = 7,601.62