Finding the Fourth Proportional to 8,261.69, 12,395.57 and 3,821.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,261.69 : 12,395.57 = 3,821.49 : x
2. Step 2: Convert to fraction form
   8,261.69/12,395.57 = 3,821.49/x
3. Step 3: Cross multiply
   8,261.69x = 12,395.57 × 3,821.49
4. Step 4: Simplify right side
   8,261.69x = 47,369,527.69
5. Step 5: Solve for x
   x = 47,369,527.69/8,261.69
6. Step 6: Final answer
   x = 5,733.64