Finding the Fourth Proportional to 22,814.90, 31,484.22 and 12,743.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,814.90 : 31,484.22 = 12,743.48 : x
2. Step 2: Convert to fraction form
   22,814.90/31,484.22 = 12,743.48/x
3. Step 3: Cross multiply
   22,814.90x = 31,484.22 × 12,743.48
4. Step 4: Simplify right side
   22,814.90x = 401,218,370.46
5. Step 5: Solve for x
   x = 401,218,370.46/22,814.90
6. Step 6: Final answer
   x = 17,585.81