Finding the Fourth Proportional to 67.01, 100.49 and 42.62

Step by Step Solution

1. Step 1: Write the proportion equation
   67.01 : 100.49 = 42.62 : x
2. Step 2: Convert to fraction form
   67.01/100.49 = 42.62/x
3. Step 3: Cross multiply
   67.01x = 100.49 × 42.62
4. Step 4: Simplify right side
   67.01x = 4,282.17
5. Step 5: Solve for x
   x = 4,282.17/67.01
6. Step 6: Final answer
   x = 63.91