Finding the Fourth Proportional to 22,205.25, 30,643.25 and 12,269.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,205.25 : 30,643.25 = 12,269.25 : x
2. Step 2: Convert to fraction form
   22,205.25/30,643.25 = 12,269.25/x
3. Step 3: Cross multiply
   22,205.25x = 30,643.25 × 12,269.25
4. Step 4: Simplify right side
   22,205.25x = 375,969,633.72
5. Step 5: Solve for x
   x = 375,969,633.72/22,205.25
6. Step 6: Final answer
   x = 16,931.57