Finding the Fourth Proportional to 10,439.42, 14,406.54 and 5,723.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,439.42 : 14,406.54 = 5,723.69 : x
2. Step 2: Convert to fraction form
   10,439.42/14,406.54 = 5,723.69/x
3. Step 3: Cross multiply
   10,439.42x = 14,406.54 × 5,723.69
4. Step 4: Simplify right side
   10,439.42x = 82,458,568.93
5. Step 5: Solve for x
   x = 82,458,568.93/10,439.42
6. Step 6: Final answer
   x = 7,898.77