Finding the Fourth Proportional to 82.22, 113.34 and 67.55

Step by Step Solution

1. Step 1: Write the proportion equation
   82.22 : 113.34 = 67.55 : x
2. Step 2: Convert to fraction form
   82.22/113.34 = 67.55/x
3. Step 3: Cross multiply
   82.22x = 113.34 × 67.55
4. Step 4: Simplify right side
   82.22x = 7,655.83
5. Step 5: Solve for x
   x = 7,655.83/82.22
6. Step 6: Final answer
   x = 93.12