Finding the Fourth Proportional to 42.23, 58.32 and 37.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42.23 : 58.32 = 37.12 : x
2. Step 2: Convert to fraction form
   42.23/58.32 = 37.12/x
3. Step 3: Cross multiply
   42.23x = 58.32 × 37.12
4. Step 4: Simplify right side
   42.23x = 2,164.69
5. Step 5: Solve for x
   x = 2,164.69/42.23
6. Step 6: Final answer
   x = 51.26