Finding the Fourth Proportional to 83.17, 114.81 and 50.42

Step by Step Solution

1. Step 1: Write the proportion equation
   83.17 : 114.81 = 50.42 : x
2. Step 2: Convert to fraction form
   83.17/114.81 = 50.42/x
3. Step 3: Cross multiply
   83.17x = 114.81 × 50.42
4. Step 4: Simplify right side
   83.17x = 5,788.72
5. Step 5: Solve for x
   x = 5,788.72/83.17
6. Step 6: Final answer
   x = 69.60