Finding the Fourth Proportional to 22,513.80, 31,069.32 and 12,442.14

Step by Step Solution

1. Step 1: Write the proportion equation
   22,513.80 : 31,069.32 = 12,442.14 : x
2. Step 2: Convert to fraction form
   22,513.80/31,069.32 = 12,442.14/x
3. Step 3: Cross multiply
   22,513.80x = 31,069.32 × 12,442.14
4. Step 4: Simplify right side
   22,513.80x = 386,568,829.14
5. Step 5: Solve for x
   x = 386,568,829.14/22,513.80
6. Step 6: Final answer
   x = 17,170.31