Finding the Fourth Proportional to 10,940.84, 16,411.98 and 3,149.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,940.84 : 16,411.98 = 3,149.72 : x
2. Step 2: Convert to fraction form
   10,940.84/16,411.98 = 3,149.72/x
3. Step 3: Cross multiply
   10,940.84x = 16,411.98 × 3,149.72
4. Step 4: Simplify right side
   10,940.84x = 51,693,141.65
5. Step 5: Solve for x
   x = 51,693,141.65/10,940.84
6. Step 6: Final answer
   x = 4,724.79