Finding the Fourth Proportional to 82.14, 113.34 and 67.42

Step by Step Solution

1. Step 1: Write the proportion equation
   82.14 : 113.34 = 67.42 : x
2. Step 2: Convert to fraction form
   82.14/113.34 = 67.42/x
3. Step 3: Cross multiply
   82.14x = 113.34 × 67.42
4. Step 4: Simplify right side
   82.14x = 7,641.38
5. Step 5: Solve for x
   x = 7,641.38/82.14
6. Step 6: Final answer
   x = 93.03