Finding the Fourth Proportional to 67.55, 100.62 and 67.01

Step by Step Solution

1. Step 1: Write the proportion equation
   67.55 : 100.62 = 67.01 : x
2. Step 2: Convert to fraction form
   67.55/100.62 = 67.01/x
3. Step 3: Cross multiply
   67.55x = 100.62 × 67.01
4. Step 4: Simplify right side
   67.55x = 6,742.04
5. Step 5: Solve for x
   x = 6,742.04/67.55
6. Step 6: Final answer
   x = 99.82