Finding the Fourth Proportional to 72.95, 109.29 and 32.30

Step by Step Solution

1. Step 1: Write the proportion equation
   72.95 : 109.29 = 32.30 : x
2. Step 2: Convert to fraction form
   72.95/109.29 = 32.30/x
3. Step 3: Cross multiply
   72.95x = 109.29 × 32.30
4. Step 4: Simplify right side
   72.95x = 3,529.52
5. Step 5: Solve for x
   x = 3,529.52/72.95
6. Step 6: Final answer
   x = 48.39