Finding the Fourth Proportional to 22,326.82, 30,810.92 and 12,255

Step by Step Solution

1. Step 1: Write the proportion equation
   22,326.82 : 30,810.92 = 12,255 : x
2. Step 2: Convert to fraction form
   22,326.82/30,810.92 = 12,255/x
3. Step 3: Cross multiply
   22,326.82x = 30,810.92 × 12,255
4. Step 4: Simplify right side
   22,326.82x = 377,587,824.60
5. Step 5: Solve for x
   x = 377,587,824.60/22,326.82
6. Step 6: Final answer
   x = 16,911.85