Finding the Fourth Proportional to 14,834.40, 22,143.27 and 12,966

Step by Step Solution

1. Step 1: Write the proportion equation
   14,834.40 : 22,143.27 = 12,966 : x
2. Step 2: Convert to fraction form
   14,834.40/22,143.27 = 12,966/x
3. Step 3: Cross multiply
   14,834.40x = 22,143.27 × 12,966
4. Step 4: Simplify right side
   14,834.40x = 287,109,638.82
5. Step 5: Solve for x
   x = 287,109,638.82/14,834.40
6. Step 6: Final answer
   x = 19,354.31