Finding the Fourth Proportional to 9,644.88, 13,310.16 and 5,453.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,644.88 : 13,310.16 = 5,453.28 : x
2. Step 2: Convert to fraction form
   9,644.88/13,310.16 = 5,453.28/x
3. Step 3: Cross multiply
   9,644.88x = 13,310.16 × 5,453.28
4. Step 4: Simplify right side
   9,644.88x = 72,584,029.32
5. Step 5: Solve for x
   x = 72,584,029.32/9,644.88
6. Step 6: Final answer
   x = 7,525.65