Finding the Fourth Proportional to 67.55, 101.39 and 55.67

Step by Step Solution

1. Step 1: Write the proportion equation
   67.55 : 101.39 = 55.67 : x
2. Step 2: Convert to fraction form
   67.55/101.39 = 55.67/x
3. Step 3: Cross multiply
   67.55x = 101.39 × 55.67
4. Step 4: Simplify right side
   67.55x = 5,644.38
5. Step 5: Solve for x
   x = 5,644.38/67.55
6. Step 6: Final answer
   x = 83.56