Finding the Fourth Proportional to 16,799.76, 23,178.96 and 9,725.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,799.76 : 23,178.96 = 9,725.76 : x
2. Step 2: Convert to fraction form
   16,799.76/23,178.96 = 9,725.76/x
3. Step 3: Cross multiply
   16,799.76x = 23,178.96 × 9,725.76
4. Step 4: Simplify right side
   16,799.76x = 225,433,002.01
5. Step 5: Solve for x
   x = 225,433,002.01/16,799.76
6. Step 6: Final answer
   x = 13,418.82