Finding the Fourth Proportional to 22,357.85, 30,851.82 and 12,286.17

Step by Step Solution

1. Step 1: Write the proportion equation
   22,357.85 : 30,851.82 = 12,286.17 : x
2. Step 2: Convert to fraction form
   22,357.85/30,851.82 = 12,286.17/x
3. Step 3: Cross multiply
   22,357.85x = 30,851.82 × 12,286.17
4. Step 4: Simplify right side
   22,357.85x = 379,050,705.33
5. Step 5: Solve for x
   x = 379,050,705.33/22,357.85
6. Step 6: Final answer
   x = 16,953.81