Finding the Fourth Proportional to 72.72, 109.01 and 32.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72.72 : 109.01 = 32.12 : x
2. Step 2: Convert to fraction form
   72.72/109.01 = 32.12/x
3. Step 3: Cross multiply
   72.72x = 109.01 × 32.12
4. Step 4: Simplify right side
   72.72x = 3,501.40
5. Step 5: Solve for x
   x = 3,501.40/72.72
6. Step 6: Final answer
   x = 48.15