Finding the Fourth Proportional to 72.98, 109.49 and 32.43

Step by Step Solution

1. Step 1: Write the proportion equation
   72.98 : 109.49 = 32.43 : x
2. Step 2: Convert to fraction form
   72.98/109.49 = 32.43/x
3. Step 3: Cross multiply
   72.98x = 109.49 × 32.43
4. Step 4: Simplify right side
   72.98x = 3,550.60
5. Step 5: Solve for x
   x = 3,550.60/72.98
6. Step 6: Final answer
   x = 48.65