Finding the Fourth Proportional to 22,406.16, 30,916.88 and 12,844.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,406.16 : 30,916.88 = 12,844.29 : x
2. Step 2: Convert to fraction form
   22,406.16/30,916.88 = 12,844.29/x
3. Step 3: Cross multiply
   22,406.16x = 30,916.88 × 12,844.29
4. Step 4: Simplify right side
   22,406.16x = 397,105,308.39
5. Step 5: Solve for x
   x = 397,105,308.39/22,406.16
6. Step 6: Final answer
   x = 17,723.04