Finding the Fourth Proportional to 79.98, 110.33 and 50.89

Step by Step Solution

1. Step 1: Write the proportion equation
   79.98 : 110.33 = 50.89 : x
2. Step 2: Convert to fraction form
   79.98/110.33 = 50.89/x
3. Step 3: Cross multiply
   79.98x = 110.33 × 50.89
4. Step 4: Simplify right side
   79.98x = 5,613.89
5. Step 5: Solve for x
   x = 5,613.89/79.98
6. Step 6: Final answer
   x = 70.19