Finding the Fourth Proportional to 22,704.82, 31,329.90 and 12,630.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,704.82 : 31,329.90 = 12,630.88 : x
2. Step 2: Convert to fraction form
   22,704.82/31,329.90 = 12,630.88/x
3. Step 3: Cross multiply
   22,704.82x = 31,329.90 × 12,630.88
4. Step 4: Simplify right side
   22,704.82x = 395,724,207.31
5. Step 5: Solve for x
   x = 395,724,207.31/22,704.82
6. Step 6: Final answer
   x = 17,429.08