Finding the Fourth Proportional to 19,601.20, 27,049.72 and 10,648.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,601.20 : 27,049.72 = 10,648.72 : x
2. Step 2: Convert to fraction form
   19,601.20/27,049.72 = 10,648.72/x
3. Step 3: Cross multiply
   19,601.20x = 27,049.72 × 10,648.72
4. Step 4: Simplify right side
   19,601.20x = 288,044,894.36
5. Step 5: Solve for x
   x = 288,044,894.36/19,601.20
6. Step 6: Final answer
   x = 14,695.27