Finding the Fourth Proportional to 22,683.03, 31,300.20 and 12,609.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,683.03 : 31,300.20 = 12,609.86 : x
2. Step 2: Convert to fraction form
   22,683.03/31,300.20 = 12,609.86/x
3. Step 3: Cross multiply
   22,683.03x = 31,300.20 × 12,609.86
4. Step 4: Simplify right side
   22,683.03x = 394,690,983.47
5. Step 5: Solve for x
   x = 394,690,983.47/22,683.03
6. Step 6: Final answer
   x = 17,400.28