Finding the Fourth Proportional to 22,945.84, 31,665.11 and 12,874.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,945.84 : 31,665.11 = 12,874.25 : x
2. Step 2: Convert to fraction form
   22,945.84/31,665.11 = 12,874.25/x
3. Step 3: Cross multiply
   22,945.84x = 31,665.11 × 12,874.25
4. Step 4: Simplify right side
   22,945.84x = 407,664,687.73
5. Step 5: Solve for x
   x = 407,664,687.73/22,945.84
6. Step 6: Final answer
   x = 17,766.39