Finding the Fourth Proportional to 10,198.28, 14,073.06 and 5,721.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,198.28 : 14,073.06 = 5,721.62 : x
2. Step 2: Convert to fraction form
   10,198.28/14,073.06 = 5,721.62/x
3. Step 3: Cross multiply
   10,198.28x = 14,073.06 × 5,721.62
4. Step 4: Simplify right side
   10,198.28x = 80,520,701.56
5. Step 5: Solve for x
   x = 80,520,701.56/10,198.28
6. Step 6: Final answer
   x = 7,895.52