Finding the Fourth Proportional to 22,564.32, 31,137.62 and 12,493.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,564.32 : 31,137.62 = 12,493.04 : x
2. Step 2: Convert to fraction form
   22,564.32/31,137.62 = 12,493.04/x
3. Step 3: Cross multiply
   22,564.32x = 31,137.62 × 12,493.04
4. Step 4: Simplify right side
   22,564.32x = 389,003,532.16
5. Step 5: Solve for x
   x = 389,003,532.16/22,564.32
6. Step 6: Final answer
   x = 17,239.76