Finding the Fourth Proportional to 74.72, 111.48 and 67.74

Step by Step Solution

1. Step 1: Write the proportion equation
   74.72 : 111.48 = 67.74 : x
2. Step 2: Convert to fraction form
   74.72/111.48 = 67.74/x
3. Step 3: Cross multiply
   74.72x = 111.48 × 67.74
4. Step 4: Simplify right side
   74.72x = 7,550.98
5. Step 5: Solve for x
   x = 7,550.98/74.72
6. Step 6: Final answer
   x = 101.05