Finding the Fourth Proportional to 32.71, 49.10 and 28.72

Step by Step Solution

1. Step 1: Write the proportion equation
   32.71 : 49.10 = 28.72 : x
2. Step 2: Convert to fraction form
   32.71/49.10 = 28.72/x
3. Step 3: Cross multiply
   32.71x = 49.10 × 28.72
4. Step 4: Simplify right side
   32.71x = 1,410.15
5. Step 5: Solve for x
   x = 1,410.15/32.71
6. Step 6: Final answer
   x = 43.11