Finding the Fourth Proportional to 22,376.63, 30,880.47 and 12,306

Step by Step Solution

1. Step 1: Write the proportion equation
   22,376.63 : 30,880.47 = 12,306 : x
2. Step 2: Convert to fraction form
   22,376.63/30,880.47 = 12,306/x
3. Step 3: Cross multiply
   22,376.63x = 30,880.47 × 12,306
4. Step 4: Simplify right side
   22,376.63x = 380,015,063.82
5. Step 5: Solve for x
   x = 380,015,063.82/22,376.63
6. Step 6: Final answer
   x = 16,982.68