Finding the Fourth Proportional to 9,383.58, 12,949.20 and 5,404.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,383.58 : 12,949.20 = 5,404.73 : x
2. Step 2: Convert to fraction form
   9,383.58/12,949.20 = 5,404.73/x
3. Step 3: Cross multiply
   9,383.58x = 12,949.20 × 5,404.73
4. Step 4: Simplify right side
   9,383.58x = 69,986,864.97
5. Step 5: Solve for x
   x = 69,986,864.97/9,383.58
6. Step 6: Final answer
   x = 7,458.44