Finding the Fourth Proportional to 22,680.10, 31,298.37 and 12,609.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,680.10 : 31,298.37 = 12,609.46 : x
2. Step 2: Convert to fraction form
   22,680.10/31,298.37 = 12,609.46/x
3. Step 3: Cross multiply
   22,680.10x = 31,298.37 × 12,609.46
4. Step 4: Simplify right side
   22,680.10x = 394,655,544.58
5. Step 5: Solve for x
   x = 394,655,544.58/22,680.10
6. Step 6: Final answer
   x = 17,400.96