Finding the Fourth Proportional to 22,209.84, 30,651.40 and 12,652.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,209.84 : 30,651.40 = 12,652.72 : x
2. Step 2: Convert to fraction form
   22,209.84/30,651.40 = 12,652.72/x
3. Step 3: Cross multiply
   22,209.84x = 30,651.40 × 12,652.72
4. Step 4: Simplify right side
   22,209.84x = 387,823,546.31
5. Step 5: Solve for x
   x = 387,823,546.31/22,209.84
6. Step 6: Final answer
   x = 17,461.79