Finding the Fourth Proportional to 22,361.69, 30,859.85 and 12,291.08

Step by Step Solution

1. Step 1: Write the proportion equation
   22,361.69 : 30,859.85 = 12,291.08 : x
2. Step 2: Convert to fraction form
   22,361.69/30,859.85 = 12,291.08/x
3. Step 3: Cross multiply
   22,361.69x = 30,859.85 × 12,291.08
4. Step 4: Simplify right side
   22,361.69x = 379,300,761.57
5. Step 5: Solve for x
   x = 379,300,761.57/22,361.69
6. Step 6: Final answer
   x = 16,962.08