Finding the Fourth Proportional to 22,156.98, 30,561 and 13,197.54

Step by Step Solution

1. Step 1: Write the proportion equation
   22,156.98 : 30,561 = 13,197.54 : x
2. Step 2: Convert to fraction form
   22,156.98/30,561 = 13,197.54/x
3. Step 3: Cross multiply
   22,156.98x = 30,561 × 13,197.54
4. Step 4: Simplify right side
   22,156.98x = 403,330,019.94
5. Step 5: Solve for x
   x = 403,330,019.94/22,156.98
6. Step 6: Final answer
   x = 18,203.29