Finding the Fourth Proportional to 16,804.80, 23,188.03 and 9,729.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,804.80 : 23,188.03 = 9,729.86 : x
2. Step 2: Convert to fraction form
   16,804.80/23,188.03 = 9,729.86/x
3. Step 3: Cross multiply
   16,804.80x = 23,188.03 × 9,729.86
4. Step 4: Simplify right side
   16,804.80x = 225,616,145.31
5. Step 5: Solve for x
   x = 225,616,145.31/16,804.80
6. Step 6: Final answer
   x = 13,425.70