Finding the Fourth Proportional to 42.52, 63.37 and 42.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42.52 : 63.37 = 42.17 : x
2. Step 2: Convert to fraction form
   42.52/63.37 = 42.17/x
3. Step 3: Cross multiply
   42.52x = 63.37 × 42.17
4. Step 4: Simplify right side
   42.52x = 2,672.00
5. Step 5: Solve for x
   x = 2,672.00/42.52
6. Step 6: Final answer
   x = 62.84