Finding the Fourth Proportional to 22,540, 31,104.64 and 12,468.84

Step by Step Solution

1. Step 1: Write the proportion equation
   22,540 : 31,104.64 = 12,468.84 : x
2. Step 2: Convert to fraction form
   22,540/31,104.64 = 12,468.84/x
3. Step 3: Cross multiply
   22,540x = 31,104.64 × 12,468.84
4. Step 4: Simplify right side
   22,540x = 387,838,779.42
5. Step 5: Solve for x
   x = 387,838,779.42/22,540
6. Step 6: Final answer
   x = 17,206.69