Finding the Fourth Proportional to 22,514.66, 31,068.67 and 12,443

Step by Step Solution

1. Step 1: Write the proportion equation
   22,514.66 : 31,068.67 = 12,443 : x
2. Step 2: Convert to fraction form
   22,514.66/31,068.67 = 12,443/x
3. Step 3: Cross multiply
   22,514.66x = 31,068.67 × 12,443
4. Step 4: Simplify right side
   22,514.66x = 386,587,460.81
5. Step 5: Solve for x
   x = 386,587,460.81/22,514.66
6. Step 6: Final answer
   x = 17,170.48