Finding the Fourth Proportional to 10,964.08, 16,443.72 and 3,171.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,964.08 : 16,443.72 = 3,171.20 : x
2. Step 2: Convert to fraction form
   10,964.08/16,443.72 = 3,171.20/x
3. Step 3: Cross multiply
   10,964.08x = 16,443.72 × 3,171.20
4. Step 4: Simplify right side
   10,964.08x = 52,146,324.86
5. Step 5: Solve for x
   x = 52,146,324.86/10,964.08
6. Step 6: Final answer
   x = 4,756.11