Finding the Fourth Proportional to 78.84, 108.83 and 50.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78.84 : 108.83 = 50.84 : x
2. Step 2: Convert to fraction form
   78.84/108.83 = 50.84/x
3. Step 3: Cross multiply
   78.84x = 108.83 × 50.84
4. Step 4: Simplify right side
   78.84x = 5,532.91
5. Step 5: Solve for x
   x = 5,532.91/78.84
6. Step 6: Final answer
   x = 70.18