Finding the Fourth Proportional to 10,434.07, 14,399.13 and 5,718.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.07 : 14,399.13 = 5,718.25 : x
2. Step 2: Convert to fraction form
   10,434.07/14,399.13 = 5,718.25/x
3. Step 3: Cross multiply
   10,434.07x = 14,399.13 × 5,718.25
4. Step 4: Simplify right side
   10,434.07x = 82,337,825.12
5. Step 5: Solve for x
   x = 82,337,825.12/10,434.07
6. Step 6: Final answer
   x = 7,891.25