Finding the Fourth Proportional to 22,467.45, 31,005.18 and 12,396

Step by Step Solution

1. Step 1: Write the proportion equation
   22,467.45 : 31,005.18 = 12,396 : x
2. Step 2: Convert to fraction form
   22,467.45/31,005.18 = 12,396/x
3. Step 3: Cross multiply
   22,467.45x = 31,005.18 × 12,396
4. Step 4: Simplify right side
   22,467.45x = 384,340,211.28
5. Step 5: Solve for x
   x = 384,340,211.28/22,467.45
6. Step 6: Final answer
   x = 17,106.53