Finding the Fourth Proportional to 8,581.82, 12,871.71 and 3,896.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,581.82 : 12,871.71 = 3,896.89 : x
2. Step 2: Convert to fraction form
   8,581.82/12,871.71 = 3,896.89/x
3. Step 3: Cross multiply
   8,581.82x = 12,871.71 × 3,896.89
4. Step 4: Simplify right side
   8,581.82x = 50,159,637.98
5. Step 5: Solve for x
   x = 50,159,637.98/8,581.82
6. Step 6: Final answer
   x = 5,844.87