Finding the Fourth Proportional to 63.94, 88.14 and 42.10

Step by Step Solution

1. Step 1: Write the proportion equation
   63.94 : 88.14 = 42.10 : x
2. Step 2: Convert to fraction form
   63.94/88.14 = 42.10/x
3. Step 3: Cross multiply
   63.94x = 88.14 × 42.10
4. Step 4: Simplify right side
   63.94x = 3,710.69
5. Step 5: Solve for x
   x = 3,710.69/63.94
6. Step 6: Final answer
   x = 58.03