Finding the Fourth Proportional to 5,689.56, 7,852.41 and 5,440.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,689.56 : 7,852.41 = 5,440.49 : x
2. Step 2: Convert to fraction form
   5,689.56/7,852.41 = 5,440.49/x
3. Step 3: Cross multiply
   5,689.56x = 7,852.41 × 5,440.49
4. Step 4: Simplify right side
   5,689.56x = 42,720,958.08
5. Step 5: Solve for x
   x = 42,720,958.08/5,689.56
6. Step 6: Final answer
   x = 7,508.66