Finding the Fourth Proportional to 67.42, 101.04 and 53.86

Step by Step Solution

1. Step 1: Write the proportion equation
   67.42 : 101.04 = 53.86 : x
2. Step 2: Convert to fraction form
   67.42/101.04 = 53.86/x
3. Step 3: Cross multiply
   67.42x = 101.04 × 53.86
4. Step 4: Simplify right side
   67.42x = 5,442.01
5. Step 5: Solve for x
   x = 5,442.01/67.42
6. Step 6: Final answer
   x = 80.72