Finding the Fourth Proportional to 22,556, 33,843.72 and 13,322

Step by Step Solution

1. Step 1: Write the proportion equation
   22,556 : 33,843.72 = 13,322 : x
2. Step 2: Convert to fraction form
   22,556/33,843.72 = 13,322/x
3. Step 3: Cross multiply
   22,556x = 33,843.72 × 13,322
4. Step 4: Simplify right side
   22,556x = 450,866,037.84
5. Step 5: Solve for x
   x = 450,866,037.84/22,556
6. Step 6: Final answer
   x = 19,988.74