Finding the Fourth Proportional to 94.69, 141.81 and 71.81

Step by Step Solution

1. Step 1: Write the proportion equation
   94.69 : 141.81 = 71.81 : x
2. Step 2: Convert to fraction form
   94.69/141.81 = 71.81/x
3. Step 3: Cross multiply
   94.69x = 141.81 × 71.81
4. Step 4: Simplify right side
   94.69x = 10,183.38
5. Step 5: Solve for x
   x = 10,183.38/94.69
6. Step 6: Final answer
   x = 107.54