Finding the Fourth Proportional to 116.56, 160.81 and 67.42

Step by Step Solution

1. Step 1: Write the proportion equation
   116.56 : 160.81 = 67.42 : x
2. Step 2: Convert to fraction form
   116.56/160.81 = 67.42/x
3. Step 3: Cross multiply
   116.56x = 160.81 × 67.42
4. Step 4: Simplify right side
   116.56x = 10,841.81
5. Step 5: Solve for x
   x = 10,841.81/116.56
6. Step 6: Final answer
   x = 93.01