Finding the Fourth Proportional to 72.82, 109.08 and 43.84

Step by Step Solution

1. Step 1: Write the proportion equation
   72.82 : 109.08 = 43.84 : x
2. Step 2: Convert to fraction form
   72.82/109.08 = 43.84/x
3. Step 3: Cross multiply
   72.82x = 109.08 × 43.84
4. Step 4: Simplify right side
   72.82x = 4,782.37
5. Step 5: Solve for x
   x = 4,782.37/72.82
6. Step 6: Final answer
   x = 65.68