Finding the Fourth Proportional to 10,439.69, 14,406.95 and 5,723.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,439.69 : 14,406.95 = 5,723.91 : x
2. Step 2: Convert to fraction form
   10,439.69/14,406.95 = 5,723.91/x
3. Step 3: Cross multiply
   10,439.69x = 14,406.95 × 5,723.91
4. Step 4: Simplify right side
   10,439.69x = 82,464,099.48
5. Step 5: Solve for x
   x = 82,464,099.48/10,439.69
6. Step 6: Final answer
   x = 7,899.10