Finding the Fourth Proportional to 22,258.01, 30,718.89 and 12,826.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,258.01 : 30,718.89 = 12,826.64 : x
2. Step 2: Convert to fraction form
   22,258.01/30,718.89 = 12,826.64/x
3. Step 3: Cross multiply
   22,258.01x = 30,718.89 × 12,826.64
4. Step 4: Simplify right side
   22,258.01x = 394,019,989.64
5. Step 5: Solve for x
   x = 394,019,989.64/22,258.01
6. Step 6: Final answer
   x = 17,702.39