Finding the Fourth Proportional to 16,898.72, 25,320.72 and 10,304.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,898.72 : 25,320.72 = 10,304.96 : x
2. Step 2: Convert to fraction form
   16,898.72/25,320.72 = 10,304.96/x
3. Step 3: Cross multiply
   16,898.72x = 25,320.72 × 10,304.96
4. Step 4: Simplify right side
   16,898.72x = 260,929,006.77
5. Step 5: Solve for x
   x = 260,929,006.77/16,898.72
6. Step 6: Final answer
   x = 15,440.76