Finding the Fourth Proportional to 9,404.92, 12,981.72 and 5,821.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,404.92 : 12,981.72 = 5,821.12 : x
2. Step 2: Convert to fraction form
   9,404.92/12,981.72 = 5,821.12/x
3. Step 3: Cross multiply
   9,404.92x = 12,981.72 × 5,821.12
4. Step 4: Simplify right side
   9,404.92x = 75,568,149.93
5. Step 5: Solve for x
   x = 75,568,149.93/9,404.92
6. Step 6: Final answer
   x = 8,034.96