Finding the Fourth Proportional to 22,814.50, 31,483.67 and 12,743.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,814.50 : 31,483.67 = 12,743.09 : x
2. Step 2: Convert to fraction form
   22,814.50/31,483.67 = 12,743.09/x
3. Step 3: Cross multiply
   22,814.50x = 31,483.67 × 12,743.09
4. Step 4: Simplify right side
   22,814.50x = 401,199,082.92
5. Step 5: Solve for x
   x = 401,199,082.92/22,814.50
6. Step 6: Final answer
   x = 17,585.27