Finding the Fourth Proportional to 33,399.82, 50,102.16 and 13,678.48

Step by Step Solution

1. Step 1: Write the proportion equation
   33,399.82 : 50,102.16 = 13,678.48 : x
2. Step 2: Convert to fraction form
   33,399.82/50,102.16 = 13,678.48/x
3. Step 3: Cross multiply
   33,399.82x = 50,102.16 × 13,678.48
4. Step 4: Simplify right side
   33,399.82x = 685,321,393.52
5. Step 5: Solve for x
   x = 685,321,393.52/33,399.82
6. Step 6: Final answer
   x = 20,518.72