Finding the Fourth Proportional to 10,440.35, 14,408.37 and 5,724.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440.35 : 14,408.37 = 5,724.63 : x
2. Step 2: Convert to fraction form
   10,440.35/14,408.37 = 5,724.63/x
3. Step 3: Cross multiply
   10,440.35x = 14,408.37 × 5,724.63
4. Step 4: Simplify right side
   10,440.35x = 82,482,643.78
5. Step 5: Solve for x
   x = 82,482,643.78/10,440.35
6. Step 6: Final answer
   x = 7,900.37