Finding the Fourth Proportional to 9,760.32, 13,468.86 and 5,511.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,760.32 : 13,468.86 = 5,511.60 : x
2. Step 2: Convert to fraction form
   9,760.32/13,468.86 = 5,511.60/x
3. Step 3: Cross multiply
   9,760.32x = 13,468.86 × 5,511.60
4. Step 4: Simplify right side
   9,760.32x = 74,234,968.78
5. Step 5: Solve for x
   x = 74,234,968.78/9,760.32
6. Step 6: Final answer
   x = 7,605.79