Finding the Fourth Proportional to 5,767.56, 8,656.83 and 3,580.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,767.56 : 8,656.83 = 3,580.56 : x
2. Step 2: Convert to fraction form
   5,767.56/8,656.83 = 3,580.56/x
3. Step 3: Cross multiply
   5,767.56x = 8,656.83 × 3,580.56
4. Step 4: Simplify right side
   5,767.56x = 30,996,299.22
5. Step 5: Solve for x
   x = 30,996,299.22/5,767.56
6. Step 6: Final answer
   x = 5,374.25