Finding the Fourth Proportional to 67.14, 100.73 and 30.09

Step by Step Solution

1. Step 1: Write the proportion equation
   67.14 : 100.73 = 30.09 : x
2. Step 2: Convert to fraction form
   67.14/100.73 = 30.09/x
3. Step 3: Cross multiply
   67.14x = 100.73 × 30.09
4. Step 4: Simplify right side
   67.14x = 3,030.82
5. Step 5: Solve for x
   x = 3,030.82/67.14
6. Step 6: Final answer
   x = 45.14