Finding the Fourth Proportional to 22,648.25, 31,249.55 and 13,695.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,648.25 : 31,249.55 = 13,695.57 : x
2. Step 2: Convert to fraction form
   22,648.25/31,249.55 = 13,695.57/x
3. Step 3: Cross multiply
   22,648.25x = 31,249.55 × 13,695.57
4. Step 4: Simplify right side
   22,648.25x = 427,980,433.73
5. Step 5: Solve for x
   x = 427,980,433.73/22,648.25
6. Step 6: Final answer
   x = 18,896.84