Finding the Fourth Proportional to 42.38, 58.42 and 37.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42.38 : 58.42 = 37.22 : x
2. Step 2: Convert to fraction form
   42.38/58.42 = 37.22/x
3. Step 3: Cross multiply
   42.38x = 58.42 × 37.22
4. Step 4: Simplify right side
   42.38x = 2,174.31
5. Step 5: Solve for x
   x = 2,174.31/42.38
6. Step 6: Final answer
   x = 51.30