Finding the Fourth Proportional to 15,843.83, 21,864.94 and 8,770.71

Step by Step Solution

1. Step 1: Write the proportion equation
   15,843.83 : 21,864.94 = 8,770.71 : x
2. Step 2: Convert to fraction form
   15,843.83/21,864.94 = 8,770.71/x
3. Step 3: Cross multiply
   15,843.83x = 21,864.94 × 8,770.71
4. Step 4: Simplify right side
   15,843.83x = 191,770,965.91
5. Step 5: Solve for x
   x = 191,770,965.91/15,843.83
6. Step 6: Final answer
   x = 12,103.83