Finding the Fourth Proportional to 22,881.18, 31,575.78 and 12,809.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,881.18 : 31,575.78 = 12,809.46 : x
2. Step 2: Convert to fraction form
   22,881.18/31,575.78 = 12,809.46/x
3. Step 3: Cross multiply
   22,881.18x = 31,575.78 × 12,809.46
4. Step 4: Simplify right side
   22,881.18x = 404,468,690.88
5. Step 5: Solve for x
   x = 404,468,690.88/22,881.18
6. Step 6: Final answer
   x = 17,676.92