Finding the Fourth Proportional to 116.61, 160.86 and 67.48

Step by Step Solution

1. Step 1: Write the proportion equation
   116.61 : 160.86 = 67.48 : x
2. Step 2: Convert to fraction form
   116.61/160.86 = 67.48/x
3. Step 3: Cross multiply
   116.61x = 160.86 × 67.48
4. Step 4: Simplify right side
   116.61x = 10,854.03
5. Step 5: Solve for x
   x = 10,854.03/116.61
6. Step 6: Final answer
   x = 93.08