Finding the Fourth Proportional to 10,433.75, 14,398.90 and 5,718.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,433.75 : 14,398.90 = 5,718.47 : x
2. Step 2: Convert to fraction form
   10,433.75/14,398.90 = 5,718.47/x
3. Step 3: Cross multiply
   10,433.75x = 14,398.90 × 5,718.47
4. Step 4: Simplify right side
   10,433.75x = 82,339,591.39
5. Step 5: Solve for x
   x = 82,339,591.39/10,433.75
6. Step 6: Final answer
   x = 7,891.66