Finding the Fourth Proportional to 10,449.37, 15,659.33 and 5,771.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,449.37 : 15,659.33 = 5,771.49 : x
2. Step 2: Convert to fraction form
   10,449.37/15,659.33 = 5,771.49/x
3. Step 3: Cross multiply
   10,449.37x = 15,659.33 × 5,771.49
4. Step 4: Simplify right side
   10,449.37x = 90,377,578.92
5. Step 5: Solve for x
   x = 90,377,578.92/10,449.37
6. Step 6: Final answer
   x = 8,649.09