Finding the Fourth Proportional to 119.50, 164.92 and 72.88

Step by Step Solution

1. Step 1: Write the proportion equation
   119.50 : 164.92 = 72.88 : x
2. Step 2: Convert to fraction form
   119.50/164.92 = 72.88/x
3. Step 3: Cross multiply
   119.50x = 164.92 × 72.88
4. Step 4: Simplify right side
   119.50x = 12,019.37
5. Step 5: Solve for x
   x = 12,019.37/119.50
6. Step 6: Final answer
   x = 100.58