Finding the Fourth Proportional to 116.05, 160.10 and 72.37

Step by Step Solution

1. Step 1: Write the proportion equation
   116.05 : 160.10 = 72.37 : x
2. Step 2: Convert to fraction form
   116.05/160.10 = 72.37/x
3. Step 3: Cross multiply
   116.05x = 160.10 × 72.37
4. Step 4: Simplify right side
   116.05x = 11,585.27
5. Step 5: Solve for x
   x = 11,585.27/116.05
6. Step 6: Final answer
   x = 99.83