Finding the Fourth Proportional to 9,495.28, 13,104.72 and 5,517.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,495.28 : 13,104.72 = 5,517.60 : x
2. Step 2: Convert to fraction form
   9,495.28/13,104.72 = 5,517.60/x
3. Step 3: Cross multiply
   9,495.28x = 13,104.72 × 5,517.60
4. Step 4: Simplify right side
   9,495.28x = 72,306,603.07
5. Step 5: Solve for x
   x = 72,306,603.07/9,495.28
6. Step 6: Final answer
   x = 7,615.00