Finding the Fourth Proportional to 42.06, 62.98 and 34.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42.06 : 62.98 = 34.42 : x
2. Step 2: Convert to fraction form
   42.06/62.98 = 34.42/x
3. Step 3: Cross multiply
   42.06x = 62.98 × 34.42
4. Step 4: Simplify right side
   42.06x = 2,167.77
5. Step 5: Solve for x
   x = 2,167.77/42.06
6. Step 6: Final answer
   x = 51.54