Finding the Fourth Proportional to 42.08, 62.79 and 37.74

Step by Step Solution

1. Step 1: Write the proportion equation
   42.08 : 62.79 = 37.74 : x
2. Step 2: Convert to fraction form
   42.08/62.79 = 37.74/x
3. Step 3: Cross multiply
   42.08x = 62.79 × 37.74
4. Step 4: Simplify right side
   42.08x = 2,369.69
5. Step 5: Solve for x
   x = 2,369.69/42.08
6. Step 6: Final answer
   x = 56.31