Finding the Fourth Proportional to 116.37, 160.41 and 74.91

Step by Step Solution

1. Step 1: Write the proportion equation
   116.37 : 160.41 = 74.91 : x
2. Step 2: Convert to fraction form
   116.37/160.41 = 74.91/x
3. Step 3: Cross multiply
   116.37x = 160.41 × 74.91
4. Step 4: Simplify right side
   116.37x = 12,016.31
5. Step 5: Solve for x
   x = 12,016.31/116.37
6. Step 6: Final answer
   x = 103.26