Finding the Fourth Proportional to 22,409.56, 30,935.82 and 12,974.68

Step by Step Solution

1. Step 1: Write the proportion equation
   22,409.56 : 30,935.82 = 12,974.68 : x
2. Step 2: Convert to fraction form
   22,409.56/30,935.82 = 12,974.68/x
3. Step 3: Cross multiply
   22,409.56x = 30,935.82 × 12,974.68
4. Step 4: Simplify right side
   22,409.56x = 401,382,365.04
5. Step 5: Solve for x
   x = 401,382,365.04/22,409.56
6. Step 6: Final answer
   x = 17,911.21