Finding the Fourth Proportional to 78.94, 118.43 and 33.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78.94 : 118.43 = 33.27 : x
2. Step 2: Convert to fraction form
   78.94/118.43 = 33.27/x
3. Step 3: Cross multiply
   78.94x = 118.43 × 33.27
4. Step 4: Simplify right side
   78.94x = 3,940.17
5. Step 5: Solve for x
   x = 3,940.17/78.94
6. Step 6: Final answer
   x = 49.91