Finding the Fourth Proportional to 22,814.66, 31,483.90 and 12,743.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,814.66 : 31,483.90 = 12,743.25 : x
2. Step 2: Convert to fraction form
   22,814.66/31,483.90 = 12,743.25/x
3. Step 3: Cross multiply
   22,814.66x = 31,483.90 × 12,743.25
4. Step 4: Simplify right side
   22,814.66x = 401,207,176.82
5. Step 5: Solve for x
   x = 401,207,176.82/22,814.66
6. Step 6: Final answer
   x = 17,585.50