Finding the Fourth Proportional to 10,440.84, 14,408.76 and 5,725.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440.84 : 14,408.76 = 5,725.08 : x
2. Step 2: Convert to fraction form
   10,440.84/14,408.76 = 5,725.08/x
3. Step 3: Cross multiply
   10,440.84x = 14,408.76 × 5,725.08
4. Step 4: Simplify right side
   10,440.84x = 82,491,303.70
5. Step 5: Solve for x
   x = 82,491,303.70/10,440.84
6. Step 6: Final answer
   x = 7,900.83