Finding the Fourth Proportional to 71.33, 106.37 and 67.07

Step by Step Solution

1. Step 1: Write the proportion equation
   71.33 : 106.37 = 67.07 : x
2. Step 2: Convert to fraction form
   71.33/106.37 = 67.07/x
3. Step 3: Cross multiply
   71.33x = 106.37 × 67.07
4. Step 4: Simplify right side
   71.33x = 7,133.37
5. Step 5: Solve for x
   x = 7,133.37/71.33
6. Step 6: Final answer
   x = 100.01