Finding the Fourth Proportional to 10,440.91, 14,408.70 and 5,725.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440.91 : 14,408.70 = 5,725.22 : x
2. Step 2: Convert to fraction form
   10,440.91/14,408.70 = 5,725.22/x
3. Step 3: Cross multiply
   10,440.91x = 14,408.70 × 5,725.22
4. Step 4: Simplify right side
   10,440.91x = 82,492,977.41
5. Step 5: Solve for x
   x = 82,492,977.41/10,440.91
6. Step 6: Final answer
   x = 7,900.94