Finding the Fourth Proportional to 42.05, 62.81 and 32.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42.05 : 62.81 = 32.42 : x
2. Step 2: Convert to fraction form
   42.05/62.81 = 32.42/x
3. Step 3: Cross multiply
   42.05x = 62.81 × 32.42
4. Step 4: Simplify right side
   42.05x = 2,036.14
5. Step 5: Solve for x
   x = 2,036.14/42.05
6. Step 6: Final answer
   x = 48.42