Finding the Fourth Proportional to 22,338, 30,826.44 and 12,402

Step by Step Solution

1. Step 1: Write the proportion equation
   22,338 : 30,826.44 = 12,402 : x
2. Step 2: Convert to fraction form
   22,338/30,826.44 = 12,402/x
3. Step 3: Cross multiply
   22,338x = 30,826.44 × 12,402
4. Step 4: Simplify right side
   22,338x = 382,309,508.88
5. Step 5: Solve for x
   x = 382,309,508.88/22,338
6. Step 6: Final answer
   x = 17,114.76