Finding the Fourth Proportional to 42.37, 58.42 and 27.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42.37 : 58.42 = 27.83 : x
2. Step 2: Convert to fraction form
   42.37/58.42 = 27.83/x
3. Step 3: Cross multiply
   42.37x = 58.42 × 27.83
4. Step 4: Simplify right side
   42.37x = 1,625.83
5. Step 5: Solve for x
   x = 1,625.83/42.37
6. Step 6: Final answer
   x = 38.37