Finding the Fourth Proportional to 78.82, 118.34 and 50.11

Step by Step Solution

1. Step 1: Write the proportion equation
   78.82 : 118.34 = 50.11 : x
2. Step 2: Convert to fraction form
   78.82/118.34 = 50.11/x
3. Step 3: Cross multiply
   78.82x = 118.34 × 50.11
4. Step 4: Simplify right side
   78.82x = 5,929.18
5. Step 5: Solve for x
   x = 5,929.18/78.82
6. Step 6: Final answer
   x = 75.23