Finding the Fourth Proportional to 16,818.72, 23,208.72 and 9,743.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,818.72 : 23,208.72 = 9,743.88 : x
2. Step 2: Convert to fraction form
   16,818.72/23,208.72 = 9,743.88/x
3. Step 3: Cross multiply
   16,818.72x = 23,208.72 × 9,743.88
4. Step 4: Simplify right side
   16,818.72x = 226,142,982.63
5. Step 5: Solve for x
   x = 226,142,982.63/16,818.72
6. Step 6: Final answer
   x = 13,445.91