Finding the Fourth Proportional to 74.84, 111.72 and 67.46

Step by Step Solution

1. Step 1: Write the proportion equation
   74.84 : 111.72 = 67.46 : x
2. Step 2: Convert to fraction form
   74.84/111.72 = 67.46/x
3. Step 3: Cross multiply
   74.84x = 111.72 × 67.46
4. Step 4: Simplify right side
   74.84x = 7,536.63
5. Step 5: Solve for x
   x = 7,536.63/74.84
6. Step 6: Final answer
   x = 100.70