Finding the Fourth Proportional to 86.84, 130.17 and 32.72

Step by Step Solution

1. Step 1: Write the proportion equation
   86.84 : 130.17 = 32.72 : x
2. Step 2: Convert to fraction form
   86.84/130.17 = 32.72/x
3. Step 3: Cross multiply
   86.84x = 130.17 × 32.72
4. Step 4: Simplify right side
   86.84x = 4,259.37
5. Step 5: Solve for x
   x = 4,259.37/86.84
6. Step 6: Final answer
   x = 49.05