Finding the Fourth Proportional to 22,714.83, 31,346.82 and 12,643.38

Step by Step Solution

1. Step 1: Write the proportion equation
   22,714.83 : 31,346.82 = 12,643.38 : x
2. Step 2: Convert to fraction form
   22,714.83/31,346.82 = 12,643.38/x
3. Step 3: Cross multiply
   22,714.83x = 31,346.82 × 12,643.38
4. Step 4: Simplify right side
   22,714.83x = 396,329,757.05
5. Step 5: Solve for x
   x = 396,329,757.05/22,714.83
6. Step 6: Final answer
   x = 17,448.06