Finding the Fourth Proportional to 16,731.63, 23,057.82 and 12,256.74

Step by Step Solution

1. Step 1: Write the proportion equation
   16,731.63 : 23,057.82 = 12,256.74 : x
2. Step 2: Convert to fraction form
   16,731.63/23,057.82 = 12,256.74/x
3. Step 3: Cross multiply
   16,731.63x = 23,057.82 × 12,256.74
4. Step 4: Simplify right side
   16,731.63x = 282,613,704.71
5. Step 5: Solve for x
   x = 282,613,704.71/16,731.63
6. Step 6: Final answer
   x = 16,890.98