Finding the Fourth Proportional to 22,380.34, 30,884.34 and 12,171.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,380.34 : 30,884.34 = 12,171.10 : x
2. Step 2: Convert to fraction form
   22,380.34/30,884.34 = 12,171.10/x
3. Step 3: Cross multiply
   22,380.34x = 30,884.34 × 12,171.10
4. Step 4: Simplify right side
   22,380.34x = 375,896,390.57
5. Step 5: Solve for x
   x = 375,896,390.57/22,380.34
6. Step 6: Final answer
   x = 16,795.83