Finding the Fourth Proportional to 42.06, 56.37 and 42.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42.06 : 56.37 = 42.06 : x
2. Step 2: Convert to fraction form
   42.06/56.37 = 42.06/x
3. Step 3: Cross multiply
   42.06x = 56.37 × 42.06
4. Step 4: Simplify right side
   42.06x = 2,370.92
5. Step 5: Solve for x
   x = 2,370.92/42.06
6. Step 6: Final answer
   x = 56.37