Finding the Fourth Proportional to 67.42, 100.99 and 52.95

Step by Step Solution

1. Step 1: Write the proportion equation
   67.42 : 100.99 = 52.95 : x
2. Step 2: Convert to fraction form
   67.42/100.99 = 52.95/x
3. Step 3: Cross multiply
   67.42x = 100.99 × 52.95
4. Step 4: Simplify right side
   67.42x = 5,347.42
5. Step 5: Solve for x
   x = 5,347.42/67.42
6. Step 6: Final answer
   x = 79.32