Finding the Fourth Proportional to 22,196.82, 30,627.96 and 13,120.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,196.82 : 30,627.96 = 13,120.92 : x
2. Step 2: Convert to fraction form
   22,196.82/30,627.96 = 13,120.92/x
3. Step 3: Cross multiply
   22,196.82x = 30,627.96 × 13,120.92
4. Step 4: Simplify right side
   22,196.82x = 401,867,012.92
5. Step 5: Solve for x
   x = 401,867,012.92/22,196.82
6. Step 6: Final answer
   x = 18,104.71