Finding the Fourth Proportional to 33,072.48, 45,639.36 and 17,964.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33,072.48 : 45,639.36 = 17,964.72 : x
2. Step 2: Convert to fraction form
   33,072.48/45,639.36 = 17,964.72/x
3. Step 3: Cross multiply
   33,072.48x = 45,639.36 × 17,964.72
4. Step 4: Simplify right side
   33,072.48x = 819,898,323.38
5. Step 5: Solve for x
   x = 819,898,323.38/33,072.48
6. Step 6: Final answer
   x = 24,790.95