Finding the Fourth Proportional to 33,142.68, 49,721.80 and 10,956.05

Step by Step Solution

1. Step 1: Write the proportion equation
   33,142.68 : 49,721.80 = 10,956.05 : x
2. Step 2: Convert to fraction form
   33,142.68/49,721.80 = 10,956.05/x
3. Step 3: Cross multiply
   33,142.68x = 49,721.80 × 10,956.05
4. Step 4: Simplify right side
   33,142.68x = 544,754,597.73
5. Step 5: Solve for x
   x = 544,754,597.73/33,142.68
6. Step 6: Final answer
   x = 16,436.65