Finding the Fourth Proportional to 78,067.96, 117,167.55 and 33,728.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,067.96 : 117,167.55 = 33,728.56 : x
2. Step 2: Convert to fraction form
   78,067.96/117,167.55 = 33,728.56/x
3. Step 3: Cross multiply
   78,067.96x = 117,167.55 × 33,728.56
4. Step 4: Simplify right side
   78,067.96x = 3,951,892,740.23
5. Step 5: Solve for x
   x = 3,951,892,740.23/78,067.96
6. Step 6: Final answer
   x = 50,621.19