Finding the Fourth Proportional to 97.89, 146.84 and 72.52

Step by Step Solution

1. Step 1: Write the proportion equation
   97.89 : 146.84 = 72.52 : x
2. Step 2: Convert to fraction form
   97.89/146.84 = 72.52/x
3. Step 3: Cross multiply
   97.89x = 146.84 × 72.52
4. Step 4: Simplify right side
   97.89x = 10,648.84
5. Step 5: Solve for x
   x = 10,648.84/97.89
6. Step 6: Final answer
   x = 108.78