Finding the Fourth Proportional to 22,814.35, 31,483.15 and 12,742.49

Step by Step Solution

1. Step 1: Write the proportion equation
   22,814.35 : 31,483.15 = 12,742.49 : x
2. Step 2: Convert to fraction form
   22,814.35/31,483.15 = 12,742.49/x
3. Step 3: Cross multiply
   22,814.35x = 31,483.15 × 12,742.49
4. Step 4: Simplify right side
   22,814.35x = 401,173,660.33
5. Step 5: Solve for x
   x = 401,173,660.33/22,814.35
6. Step 6: Final answer
   x = 17,584.27