Finding the Fourth Proportional to 22,013.01, 30,377.43 and 12,189.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,013.01 : 30,377.43 = 12,189.98 : x
2. Step 2: Convert to fraction form
   22,013.01/30,377.43 = 12,189.98/x
3. Step 3: Cross multiply
   22,013.01x = 30,377.43 × 12,189.98
4. Step 4: Simplify right side
   22,013.01x = 370,300,340.09
5. Step 5: Solve for x
   x = 370,300,340.09/22,013.01
6. Step 6: Final answer
   x = 16,821.89