Finding the Fourth Proportional to 22,942.65, 31,662.12 and 12,874.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,942.65 : 31,662.12 = 12,874.29 : x
2. Step 2: Convert to fraction form
   22,942.65/31,662.12 = 12,874.29/x
3. Step 3: Cross multiply
   22,942.65x = 31,662.12 × 12,874.29
4. Step 4: Simplify right side
   22,942.65x = 407,627,314.89
5. Step 5: Solve for x
   x = 407,627,314.89/22,942.65
6. Step 6: Final answer
   x = 17,767.23