Finding the Fourth Proportional to 22,951.04, 31,672.72 and 12,881.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,951.04 : 31,672.72 = 12,881.64 : x
2. Step 2: Convert to fraction form
   22,951.04/31,672.72 = 12,881.64/x
3. Step 3: Cross multiply
   22,951.04x = 31,672.72 × 12,881.64
4. Step 4: Simplify right side
   22,951.04x = 407,996,576.86
5. Step 5: Solve for x
   x = 407,996,576.86/22,951.04
6. Step 6: Final answer
   x = 17,776.82