Finding the Fourth Proportional to 40.42, 60.72 and 34.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40.42 : 60.72 = 34.42 : x
2. Step 2: Convert to fraction form
   40.42/60.72 = 34.42/x
3. Step 3: Cross multiply
   40.42x = 60.72 × 34.42
4. Step 4: Simplify right side
   40.42x = 2,089.98
5. Step 5: Solve for x
   x = 2,089.98/40.42
6. Step 6: Final answer
   x = 51.71