Finding the Fourth Proportional to 10,952.72, 16,431.86 and 3,161.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,952.72 : 16,431.86 = 3,161.53 : x
2. Step 2: Convert to fraction form
   10,952.72/16,431.86 = 3,161.53/x
3. Step 3: Cross multiply
   10,952.72x = 16,431.86 × 3,161.53
4. Step 4: Simplify right side
   10,952.72x = 51,949,846.79
5. Step 5: Solve for x
   x = 51,949,846.79/10,952.72
6. Step 6: Final answer
   x = 4,743.10