Finding the Fourth Proportional to 8,144.72, 12,215.52 and 2,299.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,144.72 : 12,215.52 = 2,299.92 : x
2. Step 2: Convert to fraction form
   8,144.72/12,215.52 = 2,299.92/x
3. Step 3: Cross multiply
   8,144.72x = 12,215.52 × 2,299.92
4. Step 4: Simplify right side
   8,144.72x = 28,094,718.76
5. Step 5: Solve for x
   x = 28,094,718.76/8,144.72
6. Step 6: Final answer
   x = 3,449.44