Finding the Fourth Proportional to 22,881.34, 31,576.78 and 12,809.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,881.34 : 31,576.78 = 12,809.52 : x
2. Step 2: Convert to fraction form
   22,881.34/31,576.78 = 12,809.52/x
3. Step 3: Cross multiply
   22,881.34x = 31,576.78 × 12,809.52
4. Step 4: Simplify right side
   22,881.34x = 404,483,394.95
5. Step 5: Solve for x
   x = 404,483,394.95/22,881.34
6. Step 6: Final answer
   x = 17,677.43