Finding the Fourth Proportional to 13,144.72, 19,711.92 and 5,350.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,144.72 : 19,711.92 = 5,350.72 : x
2. Step 2: Convert to fraction form
   13,144.72/19,711.92 = 5,350.72/x
3. Step 3: Cross multiply
   13,144.72x = 19,711.92 × 5,350.72
4. Step 4: Simplify right side
   13,144.72x = 105,472,964.58
5. Step 5: Solve for x
   x = 105,472,964.58/13,144.72
6. Step 6: Final answer
   x = 8,023.98