Finding the Fourth Proportional to 9,012.91, 12,449.82 and 7,251.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012.91 : 12,449.82 = 7,251.16 : x
2. Step 2: Convert to fraction form
   9,012.91/12,449.82 = 7,251.16/x
3. Step 3: Cross multiply
   9,012.91x = 12,449.82 × 7,251.16
4. Step 4: Simplify right side
   9,012.91x = 90,275,636.79
5. Step 5: Solve for x
   x = 90,275,636.79/9,012.91
6. Step 6: Final answer
   x = 10,016.26