Finding the Fourth Proportional to 22,227.84, 30,670.18 and 12,667.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,227.84 : 30,670.18 = 12,667.55 : x
2. Step 2: Convert to fraction form
   22,227.84/30,670.18 = 12,667.55/x
3. Step 3: Cross multiply
   22,227.84x = 30,670.18 × 12,667.55
4. Step 4: Simplify right side
   22,227.84x = 388,515,853.64
5. Step 5: Solve for x
   x = 388,515,853.64/22,227.84
6. Step 6: Final answer
   x = 17,478.79