Finding the Fourth Proportional to 10,498.70, 14,488.23 and 5,718.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,498.70 : 14,488.23 = 5,718.63 : x
2. Step 2: Convert to fraction form
   10,498.70/14,488.23 = 5,718.63/x
3. Step 3: Cross multiply
   10,498.70x = 14,488.23 × 5,718.63
4. Step 4: Simplify right side
   10,498.70x = 82,852,798.13
5. Step 5: Solve for x
   x = 82,852,798.13/10,498.70
6. Step 6: Final answer
   x = 7,891.72