Finding the Fourth Proportional to 15,843.55, 21,863.83 and 8,769.82

Step by Step Solution

1. Step 1: Write the proportion equation
   15,843.55 : 21,863.83 = 8,769.82 : x
2. Step 2: Convert to fraction form
   15,843.55/21,863.83 = 8,769.82/x
3. Step 3: Cross multiply
   15,843.55x = 21,863.83 × 8,769.82
4. Step 4: Simplify right side
   15,843.55x = 191,741,853.61
5. Step 5: Solve for x
   x = 191,741,853.61/15,843.55
6. Step 6: Final answer
   x = 12,102.20