Finding the Fourth Proportional to 9,760.64, 13,469.13 and 5,511.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,760.64 : 13,469.13 = 5,511.42 : x
2. Step 2: Convert to fraction form
   9,760.64/13,469.13 = 5,511.42/x
3. Step 3: Cross multiply
   9,760.64x = 13,469.13 × 5,511.42
4. Step 4: Simplify right side
   9,760.64x = 74,234,032.46
5. Step 5: Solve for x
   x = 74,234,032.46/9,760.64
6. Step 6: Final answer
   x = 7,605.45