Finding the Fourth Proportional to 5,756.41, 8,645.55 and 3,580.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,756.41 : 8,645.55 = 3,580.34 : x
2. Step 2: Convert to fraction form
   5,756.41/8,645.55 = 3,580.34/x
3. Step 3: Cross multiply
   5,756.41x = 8,645.55 × 3,580.34
4. Step 4: Simplify right side
   5,756.41x = 30,954,008.49
5. Step 5: Solve for x
   x = 30,954,008.49/5,756.41
6. Step 6: Final answer
   x = 5,377.31