Finding the Fourth Proportional to 22,606, 31,196.28 and 13,174.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,606 : 31,196.28 = 13,174.56 : x
2. Step 2: Convert to fraction form
   22,606/31,196.28 = 13,174.56/x
3. Step 3: Cross multiply
   22,606x = 31,196.28 × 13,174.56
4. Step 4: Simplify right side
   22,606x = 410,997,262.64
5. Step 5: Solve for x
   x = 410,997,262.64/22,606
6. Step 6: Final answer
   x = 18,180.89