Finding the Fourth Proportional to 33,143.68, 49,723.30 and 10,957.05

Step by Step Solution

1. Step 1: Write the proportion equation
   33,143.68 : 49,723.30 = 10,957.05 : x
2. Step 2: Convert to fraction form
   33,143.68/49,723.30 = 10,957.05/x
3. Step 3: Cross multiply
   33,143.68x = 49,723.30 × 10,957.05
4. Step 4: Simplify right side
   33,143.68x = 544,820,684.27
5. Step 5: Solve for x
   x = 544,820,684.27/33,143.68
6. Step 6: Final answer
   x = 16,438.15