Finding the Fourth Proportional to 10,440.56, 14,408.89 and 5,725.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440.56 : 14,408.89 = 5,725.76 : x
2. Step 2: Convert to fraction form
   10,440.56/14,408.89 = 5,725.76/x
3. Step 3: Cross multiply
   10,440.56x = 14,408.89 × 5,725.76
4. Step 4: Simplify right side
   10,440.56x = 82,501,759.65
5. Step 5: Solve for x
   x = 82,501,759.65/10,440.56
6. Step 6: Final answer
   x = 7,902.04