Finding the Fourth Proportional to 3,809.40, 5,672.47 and 3,669.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,809.40 : 5,672.47 = 3,669.27 : x
2. Step 2: Convert to fraction form
   3,809.40/5,672.47 = 3,669.27/x
3. Step 3: Cross multiply
   3,809.40x = 5,672.47 × 3,669.27
4. Step 4: Simplify right side
   3,809.40x = 20,813,824.00
5. Step 5: Solve for x
   x = 20,813,824.00/3,809.40
6. Step 6: Final answer
   x = 5,463.81