Finding the Fourth Proportional to 10,942.08, 16,410.72 and 3,149.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,942.08 : 16,410.72 = 3,149.20 : x
2. Step 2: Convert to fraction form
   10,942.08/16,410.72 = 3,149.20/x
3. Step 3: Cross multiply
   10,942.08x = 16,410.72 × 3,149.20
4. Step 4: Simplify right side
   10,942.08x = 51,680,639.42
5. Step 5: Solve for x
   x = 51,680,639.42/10,942.08
6. Step 6: Final answer
   x = 4,723.11