Finding the Fourth Proportional to 10,434.42, 14,399.51 and 5,718.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.42 : 14,399.51 = 5,718.74 : x
2. Step 2: Convert to fraction form
   10,434.42/14,399.51 = 5,718.74/x
3. Step 3: Cross multiply
   10,434.42x = 14,399.51 × 5,718.74
4. Step 4: Simplify right side
   10,434.42x = 82,346,953.23
5. Step 5: Solve for x
   x = 82,346,953.23/10,434.42
6. Step 6: Final answer
   x = 7,891.86