Finding the Fourth Proportional to 8,871.44, 12,247.56 and 5,891.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,871.44 : 12,247.56 = 5,891.31 : x
2. Step 2: Convert to fraction form
   8,871.44/12,247.56 = 5,891.31/x
3. Step 3: Cross multiply
   8,871.44x = 12,247.56 × 5,891.31
4. Step 4: Simplify right side
   8,871.44x = 72,154,172.70
5. Step 5: Solve for x
   x = 72,154,172.70/8,871.44
6. Step 6: Final answer
   x = 8,133.31