Finding the Fourth Proportional to 22,451.05, 30,982.67 and 12,379.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,451.05 : 30,982.67 = 12,379.89 : x
2. Step 2: Convert to fraction form
   22,451.05/30,982.67 = 12,379.89/x
3. Step 3: Cross multiply
   22,451.05x = 30,982.67 × 12,379.89
4. Step 4: Simplify right side
   22,451.05x = 383,562,046.51
5. Step 5: Solve for x
   x = 383,562,046.51/22,451.05
6. Step 6: Final answer
   x = 17,084.37