Finding the Fourth Proportional to 42.42, 63.31 and 32.23

Step by Step Solution

1. Step 1: Write the proportion equation
   42.42 : 63.31 = 32.23 : x
2. Step 2: Convert to fraction form
   42.42/63.31 = 32.23/x
3. Step 3: Cross multiply
   42.42x = 63.31 × 32.23
4. Step 4: Simplify right side
   42.42x = 2,040.16
5. Step 5: Solve for x
   x = 2,040.16/42.42
6. Step 6: Final answer
   x = 48.09