Finding the Fourth Proportional to 22,814.64, 31,483.88 and 12,743.23

Step by Step Solution

1. Step 1: Write the proportion equation
   22,814.64 : 31,483.88 = 12,743.23 : x
2. Step 2: Convert to fraction form
   22,814.64/31,483.88 = 12,743.23/x
3. Step 3: Cross multiply
   22,814.64x = 31,483.88 × 12,743.23
4. Step 4: Simplify right side
   22,814.64x = 401,206,142.35
5. Step 5: Solve for x
   x = 401,206,142.35/22,814.64
6. Step 6: Final answer
   x = 17,585.47