Finding the Fourth Proportional to 22,881.10, 31,574.43 and 12,809.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,881.10 : 31,574.43 = 12,809.45 : x
2. Step 2: Convert to fraction form
   22,881.10/31,574.43 = 12,809.45/x
3. Step 3: Cross multiply
   22,881.10x = 31,574.43 × 12,809.45
4. Step 4: Simplify right side
   22,881.10x = 404,451,161.30
5. Step 5: Solve for x
   x = 404,451,161.30/22,881.10
6. Step 6: Final answer
   x = 17,676.21