Finding the Fourth Proportional to 116.32, 160.42 and 74.82

Step by Step Solution

1. Step 1: Write the proportion equation
   116.32 : 160.42 = 74.82 : x
2. Step 2: Convert to fraction form
   116.32/160.42 = 74.82/x
3. Step 3: Cross multiply
   116.32x = 160.42 × 74.82
4. Step 4: Simplify right side
   116.32x = 12,002.62
5. Step 5: Solve for x
   x = 12,002.62/116.32
6. Step 6: Final answer
   x = 103.19