Finding the Fourth Proportional to 22,200.92, 33,139.42 and 19,398.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,200.92 : 33,139.42 = 19,398.37 : x
2. Step 2: Convert to fraction form
   22,200.92/33,139.42 = 19,398.37/x
3. Step 3: Cross multiply
   22,200.92x = 33,139.42 × 19,398.37
4. Step 4: Simplify right side
   22,200.92x = 642,850,770.65
5. Step 5: Solve for x
   x = 642,850,770.65/22,200.92
6. Step 6: Final answer
   x = 28,956.04