Finding the Fourth Proportional to 81,365.40, 122,067.59 and 33,954.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,365.40 : 122,067.59 = 33,954.12 : x
2. Step 2: Convert to fraction form
   81,365.40/122,067.59 = 33,954.12/x
3. Step 3: Cross multiply
   81,365.40x = 122,067.59 × 33,954.12
4. Step 4: Simplify right side
   81,365.40x = 4,144,697,429.20
5. Step 5: Solve for x
   x = 4,144,697,429.20/81,365.40
6. Step 6: Final answer
   x = 50,939.31