Finding the Fourth Proportional to 9,644.52, 13,309.38 and 5,395.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,644.52 : 13,309.38 = 5,395.57 : x
2. Step 2: Convert to fraction form
   9,644.52/13,309.38 = 5,395.57/x
3. Step 3: Cross multiply
   9,644.52x = 13,309.38 × 5,395.57
4. Step 4: Simplify right side
   9,644.52x = 71,811,691.45
5. Step 5: Solve for x
   x = 71,811,691.45/9,644.52
6. Step 6: Final answer
   x = 7,445.85