Finding the Fourth Proportional to 10,705.29, 16,034.17 and 8,221.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,705.29 : 16,034.17 = 8,221.83 : x
2. Step 2: Convert to fraction form
   10,705.29/16,034.17 = 8,221.83/x
3. Step 3: Cross multiply
   10,705.29x = 16,034.17 × 8,221.83
4. Step 4: Simplify right side
   10,705.29x = 131,830,219.93
5. Step 5: Solve for x
   x = 131,830,219.93/10,705.29
6. Step 6: Final answer
   x = 12,314.49