Finding the Fourth Proportional to 110.67, 152.76 and 71.87

Step by Step Solution

1. Step 1: Write the proportion equation
   110.67 : 152.76 = 71.87 : x
2. Step 2: Convert to fraction form
   110.67/152.76 = 71.87/x
3. Step 3: Cross multiply
   110.67x = 152.76 × 71.87
4. Step 4: Simplify right side
   110.67x = 10,978.10
5. Step 5: Solve for x
   x = 10,978.10/110.67
6. Step 6: Final answer
   x = 99.20