Finding the Fourth Proportional to 22,617.54, 31,215.94 and 12,549.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,617.54 : 31,215.94 = 12,549.22 : x
2. Step 2: Convert to fraction form
   22,617.54/31,215.94 = 12,549.22/x
3. Step 3: Cross multiply
   22,617.54x = 31,215.94 × 12,549.22
4. Step 4: Simplify right side
   22,617.54x = 391,735,698.57
5. Step 5: Solve for x
   x = 391,735,698.57/22,617.54
6. Step 6: Final answer
   x = 17,320.00