Finding the Fourth Proportional to 8,800.29, 12,144.20 and 4,919.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,800.29 : 12,144.20 = 4,919.31 : x
2. Step 2: Convert to fraction form
   8,800.29/12,144.20 = 4,919.31/x
3. Step 3: Cross multiply
   8,800.29x = 12,144.20 × 4,919.31
4. Step 4: Simplify right side
   8,800.29x = 59,741,059.91
5. Step 5: Solve for x
   x = 59,741,059.91/8,800.29
6. Step 6: Final answer
   x = 6,788.53