Finding the Fourth Proportional to 33.50, 50.18 and 28.10

Step by Step Solution

1. Step 1: Write the proportion equation
   33.50 : 50.18 = 28.10 : x
2. Step 2: Convert to fraction form
   33.50/50.18 = 28.10/x
3. Step 3: Cross multiply
   33.50x = 50.18 × 28.10
4. Step 4: Simplify right side
   33.50x = 1,410.04
5. Step 5: Solve for x
   x = 1,410.04/33.50
6. Step 6: Final answer
   x = 42.09