Finding the Fourth Proportional to 73.98, 111.18 and 50.10

Step by Step Solution

1. Step 1: Write the proportion equation
   73.98 : 111.18 = 50.10 : x
2. Step 2: Convert to fraction form
   73.98/111.18 = 50.10/x
3. Step 3: Cross multiply
   73.98x = 111.18 × 50.10
4. Step 4: Simplify right side
   73.98x = 5,570.12
5. Step 5: Solve for x
   x = 5,570.12/73.98
6. Step 6: Final answer
   x = 75.29