Finding the Fourth Proportional to 71.82, 107.33 and 71.35

Step by Step Solution

1. Step 1: Write the proportion equation
   71.82 : 107.33 = 71.35 : x
2. Step 2: Convert to fraction form
   71.82/107.33 = 71.35/x
3. Step 3: Cross multiply
   71.82x = 107.33 × 71.35
4. Step 4: Simplify right side
   71.82x = 7,657.37
5. Step 5: Solve for x
   x = 7,657.37/71.82
6. Step 6: Final answer
   x = 106.62