Finding the Fourth Proportional to 116.37, 160.52 and 72.63

Step by Step Solution

1. Step 1: Write the proportion equation
   116.37 : 160.52 = 72.63 : x
2. Step 2: Convert to fraction form
   116.37/160.52 = 72.63/x
3. Step 3: Cross multiply
   116.37x = 160.52 × 72.63
4. Step 4: Simplify right side
   116.37x = 11,658.20
5. Step 5: Solve for x
   x = 11,658.20/116.37
6. Step 6: Final answer
   x = 100.18