Finding the Fourth Proportional to 68.37, 94.37 and 42.17

Step by Step Solution

1. Step 1: Write the proportion equation
   68.37 : 94.37 = 42.17 : x
2. Step 2: Convert to fraction form
   68.37/94.37 = 42.17/x
3. Step 3: Cross multiply
   68.37x = 94.37 × 42.17
4. Step 4: Simplify right side
   68.37x = 3,978.90
5. Step 5: Solve for x
   x = 3,978.90/68.37
6. Step 6: Final answer
   x = 58.20