Finding the Fourth Proportional to 116.50, 160.79 and 72.83

Step by Step Solution

1. Step 1: Write the proportion equation
   116.50 : 160.79 = 72.83 : x
2. Step 2: Convert to fraction form
   116.50/160.79 = 72.83/x
3. Step 3: Cross multiply
   116.50x = 160.79 × 72.83
4. Step 4: Simplify right side
   116.50x = 11,710.34
5. Step 5: Solve for x
   x = 11,710.34/116.50
6. Step 6: Final answer
   x = 100.52