Finding the Fourth Proportional to 22,756.96, 31,404.67 and 13,198.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,756.96 : 31,404.67 = 13,198.69 : x
2. Step 2: Convert to fraction form
   22,756.96/31,404.67 = 13,198.69/x
3. Step 3: Cross multiply
   22,756.96x = 31,404.67 × 13,198.69
4. Step 4: Simplify right side
   22,756.96x = 414,500,392.37
5. Step 5: Solve for x
   x = 414,500,392.37/22,756.96
6. Step 6: Final answer
   x = 18,214.23