Finding the Fourth Proportional to 12,282.86, 16,956.72 and 8,309.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,282.86 : 16,956.72 = 8,309.34 : x
2. Step 2: Convert to fraction form
   12,282.86/16,956.72 = 8,309.34/x
3. Step 3: Cross multiply
   12,282.86x = 16,956.72 × 8,309.34
4. Step 4: Simplify right side
   12,282.86x = 140,899,151.76
5. Step 5: Solve for x
   x = 140,899,151.76/12,282.86
6. Step 6: Final answer
   x = 11,471.21