Finding the Fourth Proportional to 22,996.18, 31,730.41 and 12,923.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,996.18 : 31,730.41 = 12,923.30 : x
2. Step 2: Convert to fraction form
   22,996.18/31,730.41 = 12,923.30/x
3. Step 3: Cross multiply
   22,996.18x = 31,730.41 × 12,923.30
4. Step 4: Simplify right side
   22,996.18x = 410,061,607.55
5. Step 5: Solve for x
   x = 410,061,607.55/22,996.18
6. Step 6: Final answer
   x = 17,831.73