Finding the Fourth Proportional to 10,439.61, 14,406.74 and 5,723.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,439.61 : 14,406.74 = 5,723.89 : x
2. Step 2: Convert to fraction form
   10,439.61/14,406.74 = 5,723.89/x
3. Step 3: Cross multiply
   10,439.61x = 14,406.74 × 5,723.89
4. Step 4: Simplify right side
   10,439.61x = 82,462,595.02
5. Step 5: Solve for x
   x = 82,462,595.02/10,439.61
6. Step 6: Final answer
   x = 7,899.01