Finding the Fourth Proportional to 42.30, 63.34 and 33.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42.30 : 63.34 = 33.24 : x
2. Step 2: Convert to fraction form
   42.30/63.34 = 33.24/x
3. Step 3: Cross multiply
   42.30x = 63.34 × 33.24
4. Step 4: Simplify right side
   42.30x = 2,105.42
5. Step 5: Solve for x
   x = 2,105.42/42.30
6. Step 6: Final answer
   x = 49.77