Finding the Fourth Proportional to 10,498.66, 14,487.70 and 5,718.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,498.66 : 14,487.70 = 5,718.62 : x
2. Step 2: Convert to fraction form
   10,498.66/14,487.70 = 5,718.62/x
3. Step 3: Cross multiply
   10,498.66x = 14,487.70 × 5,718.62
4. Step 4: Simplify right side
   10,498.66x = 82,849,650.97
5. Step 5: Solve for x
   x = 82,849,650.97/10,498.66
6. Step 6: Final answer
   x = 7,891.45