Finding the Fourth Proportional to 22,204.42, 30,642.50 and 12,133.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,204.42 : 30,642.50 = 12,133.28 : x
2. Step 2: Convert to fraction form
   22,204.42/30,642.50 = 12,133.28/x
3. Step 3: Cross multiply
   22,204.42x = 30,642.50 × 12,133.28
4. Step 4: Simplify right side
   22,204.42x = 371,794,139.34
5. Step 5: Solve for x
   x = 371,794,139.34/22,204.42
6. Step 6: Final answer
   x = 16,744.15