Finding the Fourth Proportional to 72.96, 100.02 and 71.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72.96 : 100.02 = 71.10 : x
2. Step 2: Convert to fraction form
   72.96/100.02 = 71.10/x
3. Step 3: Cross multiply
   72.96x = 100.02 × 71.10
4. Step 4: Simplify right side
   72.96x = 7,111.42
5. Step 5: Solve for x
   x = 7,111.42/72.96
6. Step 6: Final answer
   x = 97.47