Finding the Fourth Proportional to 6,561.43, 9,843.98 and 2,181.96

Step by Step Solution

1. Step 1: Write the proportion equation
   6,561.43 : 9,843.98 = 2,181.96 : x
2. Step 2: Convert to fraction form
   6,561.43/9,843.98 = 2,181.96/x
3. Step 3: Cross multiply
   6,561.43x = 9,843.98 × 2,181.96
4. Step 4: Simplify right side
   6,561.43x = 21,479,159.69
5. Step 5: Solve for x
   x = 21,479,159.69/6,561.43
6. Step 6: Final answer
   x = 3,273.55