Finding the Fourth Proportional to 16,799.56, 23,180.56 and 9,724.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,799.56 : 23,180.56 = 9,724.76 : x
2. Step 2: Convert to fraction form
   16,799.56/23,180.56 = 9,724.76/x
3. Step 3: Cross multiply
   16,799.56x = 23,180.56 × 9,724.76
4. Step 4: Simplify right side
   16,799.56x = 225,425,382.67
5. Step 5: Solve for x
   x = 225,425,382.67/16,799.56
6. Step 6: Final answer
   x = 13,418.53