Finding the Fourth Proportional to 42.29, 63.46 and 33.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42.29 : 63.46 = 33.31 : x
2. Step 2: Convert to fraction form
   42.29/63.46 = 33.31/x
3. Step 3: Cross multiply
   42.29x = 63.46 × 33.31
4. Step 4: Simplify right side
   42.29x = 2,113.54
5. Step 5: Solve for x
   x = 2,113.54/42.29
6. Step 6: Final answer
   x = 49.98