Finding the Fourth Proportional to 16,802.56, 23,187.06 and 9,729.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,802.56 : 23,187.06 = 9,729.10 : x
2. Step 2: Convert to fraction form
   16,802.56/23,187.06 = 9,729.10/x
3. Step 3: Cross multiply
   16,802.56x = 23,187.06 × 9,729.10
4. Step 4: Simplify right side
   16,802.56x = 225,589,225.45
5. Step 5: Solve for x
   x = 225,589,225.45/16,802.56
6. Step 6: Final answer
   x = 13,425.88