Finding the Fourth Proportional to 33,828.72, 50,756.04 and 12,767.28

Step by Step Solution

1. Step 1: Write the proportion equation
   33,828.72 : 50,756.04 = 12,767.28 : x
2. Step 2: Convert to fraction form
   33,828.72/50,756.04 = 12,767.28/x
3. Step 3: Cross multiply
   33,828.72x = 50,756.04 × 12,767.28
4. Step 4: Simplify right side
   33,828.72x = 648,016,574.37
5. Step 5: Solve for x
   x = 648,016,574.37/33,828.72
6. Step 6: Final answer
   x = 19,155.81