Finding the Fourth Proportional to 16,510.57, 22,784.51 and 8,956.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,510.57 : 22,784.51 = 8,956.91 : x
2. Step 2: Convert to fraction form
   16,510.57/22,784.51 = 8,956.91/x
3. Step 3: Cross multiply
   16,510.57x = 22,784.51 × 8,956.91
4. Step 4: Simplify right side
   16,510.57x = 204,078,691.54
5. Step 5: Solve for x
   x = 204,078,691.54/16,510.57
6. Step 6: Final answer
   x = 12,360.49