Finding the Fourth Proportional to 42.57, 63.37 and 42.37

Step by Step Solution

1. Step 1: Write the proportion equation
   42.57 : 63.37 = 42.37 : x
2. Step 2: Convert to fraction form
   42.57/63.37 = 42.37/x
3. Step 3: Cross multiply
   42.57x = 63.37 × 42.37
4. Step 4: Simplify right side
   42.57x = 2,684.99
5. Step 5: Solve for x
   x = 2,684.99/42.57
6. Step 6: Final answer
   x = 63.07