Finding the Fourth Proportional to 67.00, 100.50 and 30.42

Step by Step Solution

1. Step 1: Write the proportion equation
   67.00 : 100.50 = 30.42 : x
2. Step 2: Convert to fraction form
   67.00/100.50 = 30.42/x
3. Step 3: Cross multiply
   67.00x = 100.50 × 30.42
4. Step 4: Simplify right side
   67.00x = 3,057.05
5. Step 5: Solve for x
   x = 3,057.05/67.00
6. Step 6: Final answer
   x = 45.63