Finding the Fourth Proportional to 42.29, 58.27 and 37.91

Step by Step Solution

1. Step 1: Write the proportion equation
   42.29 : 58.27 = 37.91 : x
2. Step 2: Convert to fraction form
   42.29/58.27 = 37.91/x
3. Step 3: Cross multiply
   42.29x = 58.27 × 37.91
4. Step 4: Simplify right side
   42.29x = 2,209.02
5. Step 5: Solve for x
   x = 2,209.02/42.29
6. Step 6: Final answer
   x = 52.23