Finding the Fourth Proportional to 10,682, 16,003.55 and 10,448.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,682 : 16,003.55 = 10,448.72 : x
2. Step 2: Convert to fraction form
   10,682/16,003.55 = 10,448.72/x
3. Step 3: Cross multiply
   10,682x = 16,003.55 × 10,448.72
4. Step 4: Simplify right side
   10,682x = 167,216,612.96
5. Step 5: Solve for x
   x = 167,216,612.96/10,682
6. Step 6: Final answer
   x = 15,654.05