Finding the Fourth Proportional to 22,204.15, 30,640.84 and 12,645.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,204.15 : 30,640.84 = 12,645.34 : x
2. Step 2: Convert to fraction form
   22,204.15/30,640.84 = 12,645.34/x
3. Step 3: Cross multiply
   22,204.15x = 30,640.84 × 12,645.34
4. Step 4: Simplify right side
   22,204.15x = 387,463,839.69
5. Step 5: Solve for x
   x = 387,463,839.69/22,204.15
6. Step 6: Final answer
   x = 17,450.06