Finding the Fourth Proportional to 8,441.72, 12,662.20 and 5,669.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,441.72 : 12,662.20 = 5,669.56 : x
2. Step 2: Convert to fraction form
   8,441.72/12,662.20 = 5,669.56/x
3. Step 3: Cross multiply
   8,441.72x = 12,662.20 × 5,669.56
4. Step 4: Simplify right side
   8,441.72x = 71,789,102.63
5. Step 5: Solve for x
   x = 71,789,102.63/8,441.72
6. Step 6: Final answer
   x = 8,504.08