Finding the Fourth Proportional to 22,093.05, 30,488.73 and 12,021.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,093.05 : 30,488.73 = 12,021.78 : x
2. Step 2: Convert to fraction form
   22,093.05/30,488.73 = 12,021.78/x
3. Step 3: Cross multiply
   22,093.05x = 30,488.73 × 12,021.78
4. Step 4: Simplify right side
   22,093.05x = 366,528,804.54
5. Step 5: Solve for x
   x = 366,528,804.54/22,093.05
6. Step 6: Final answer
   x = 16,590.23