Finding the Fourth Proportional to 74.62, 111.69 and 50.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74.62 : 111.69 = 50.50 : x
2. Step 2: Convert to fraction form
   74.62/111.69 = 50.50/x
3. Step 3: Cross multiply
   74.62x = 111.69 × 50.50
4. Step 4: Simplify right side
   74.62x = 5,640.35
5. Step 5: Solve for x
   x = 5,640.35/74.62
6. Step 6: Final answer
   x = 75.59