Finding the Fourth Proportional to 16,801.76, 23,181.72 and 9,727.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,801.76 : 23,181.72 = 9,727.76 : x
2. Step 2: Convert to fraction form
   16,801.76/23,181.72 = 9,727.76/x
3. Step 3: Cross multiply
   16,801.76x = 23,181.72 × 9,727.76
4. Step 4: Simplify right side
   16,801.76x = 225,506,208.55
5. Step 5: Solve for x
   x = 225,506,208.55/16,801.76
6. Step 6: Final answer
   x = 13,421.58