Finding the Fourth Proportional to 22,920.98, 31,630.50 and 12,711.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,920.98 : 31,630.50 = 12,711.94 : x
2. Step 2: Convert to fraction form
   22,920.98/31,630.50 = 12,711.94/x
3. Step 3: Cross multiply
   22,920.98x = 31,630.50 × 12,711.94
4. Step 4: Simplify right side
   22,920.98x = 402,084,939.09
5. Step 5: Solve for x
   x = 402,084,939.09/22,920.98
6. Step 6: Final answer
   x = 17,542.23