Finding the Fourth Proportional to 67.01, 100.34 and 49.91

Step by Step Solution

1. Step 1: Write the proportion equation
   67.01 : 100.34 = 49.91 : x
2. Step 2: Convert to fraction form
   67.01/100.34 = 49.91/x
3. Step 3: Cross multiply
   67.01x = 100.34 × 49.91
4. Step 4: Simplify right side
   67.01x = 5,007.72
5. Step 5: Solve for x
   x = 5,007.72/67.01
6. Step 6: Final answer
   x = 74.73