Finding the Fourth Proportional to 10,434.65, 14,399.71 and 5,718.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.65 : 14,399.71 = 5,718.89 : x
2. Step 2: Convert to fraction form
   10,434.65/14,399.71 = 5,718.89/x
3. Step 3: Cross multiply
   10,434.65x = 14,399.71 × 5,718.89
4. Step 4: Simplify right side
   10,434.65x = 82,350,379.22
5. Step 5: Solve for x
   x = 82,350,379.22/10,434.65
6. Step 6: Final answer
   x = 7,892.02