Finding the Fourth Proportional to 3,443.72, 5,131.37 and 3,276.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.72 : 5,131.37 = 3,276.36 : x
2. Step 2: Convert to fraction form
   3,443.72/5,131.37 = 3,276.36/x
3. Step 3: Cross multiply
   3,443.72x = 5,131.37 × 3,276.36
4. Step 4: Simplify right side
   3,443.72x = 16,812,223.60
5. Step 5: Solve for x
   x = 16,812,223.60/3,443.72
6. Step 6: Final answer
   x = 4,882.00