Finding the Fourth Proportional to 22,203.55, 33,143.34 and 19,401

Step by Step Solution

1. Step 1: Write the proportion equation
   22,203.55 : 33,143.34 = 19,401 : x
2. Step 2: Convert to fraction form
   22,203.55/33,143.34 = 19,401/x
3. Step 3: Cross multiply
   22,203.55x = 33,143.34 × 19,401
4. Step 4: Simplify right side
   22,203.55x = 643,013,939.34
5. Step 5: Solve for x
   x = 643,013,939.34/22,203.55
6. Step 6: Final answer
   x = 28,959.97