Finding the Fourth Proportional to 97.61, 146.43 and 72.27

Step by Step Solution

1. Step 1: Write the proportion equation
   97.61 : 146.43 = 72.27 : x
2. Step 2: Convert to fraction form
   97.61/146.43 = 72.27/x
3. Step 3: Cross multiply
   97.61x = 146.43 × 72.27
4. Step 4: Simplify right side
   97.61x = 10,582.50
5. Step 5: Solve for x
   x = 10,582.50/97.61
6. Step 6: Final answer
   x = 108.42