Finding the Fourth Proportional to 42.26, 63.42 and 33.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42.26 : 63.42 = 33.10 : x
2. Step 2: Convert to fraction form
   42.26/63.42 = 33.10/x
3. Step 3: Cross multiply
   42.26x = 63.42 × 33.10
4. Step 4: Simplify right side
   42.26x = 2,098.88
5. Step 5: Solve for x
   x = 2,098.88/42.26
6. Step 6: Final answer
   x = 49.67