Finding the Fourth Proportional to 16,902.72, 25,326.72 and 10,308.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,902.72 : 25,326.72 = 10,308.96 : x
2. Step 2: Convert to fraction form
   16,902.72/25,326.72 = 10,308.96/x
3. Step 3: Cross multiply
   16,902.72x = 25,326.72 × 10,308.96
4. Step 4: Simplify right side
   16,902.72x = 261,092,143.41
5. Step 5: Solve for x
   x = 261,092,143.41/16,902.72
6. Step 6: Final answer
   x = 15,446.75