Finding the Fourth Proportional to 22,359.39, 33,554.49 and 9,211.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,359.39 : 33,554.49 = 9,211.78 : x
2. Step 2: Convert to fraction form
   22,359.39/33,554.49 = 9,211.78/x
3. Step 3: Cross multiply
   22,359.39x = 33,554.49 × 9,211.78
4. Step 4: Simplify right side
   22,359.39x = 309,096,579.89
5. Step 5: Solve for x
   x = 309,096,579.89/22,359.39
6. Step 6: Final answer
   x = 13,824.02