Finding the Fourth Proportional to 9,728.48, 13,425.35 and 5,536.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,728.48 : 13,425.35 = 5,536.73 : x
2. Step 2: Convert to fraction form
   9,728.48/13,425.35 = 5,536.73/x
3. Step 3: Cross multiply
   9,728.48x = 13,425.35 × 5,536.73
4. Step 4: Simplify right side
   9,728.48x = 74,332,443.30
5. Step 5: Solve for x
   x = 74,332,443.30/9,728.48
6. Step 6: Final answer
   x = 7,640.71