Finding the Fourth Proportional to 23,131.44, 34,709.31 and 12,609

Step by Step Solution

1. Step 1: Write the proportion equation
   23,131.44 : 34,709.31 = 12,609 : x
2. Step 2: Convert to fraction form
   23,131.44/34,709.31 = 12,609/x
3. Step 3: Cross multiply
   23,131.44x = 34,709.31 × 12,609
4. Step 4: Simplify right side
   23,131.44x = 437,649,689.79
5. Step 5: Solve for x
   x = 437,649,689.79/23,131.44
6. Step 6: Final answer
   x = 18,920.12