Finding the Fourth Proportional to 22,450.67, 30,980.52 and 12,379.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,450.67 : 30,980.52 = 12,379.22 : x
2. Step 2: Convert to fraction form
   22,450.67/30,980.52 = 12,379.22/x
3. Step 3: Cross multiply
   22,450.67x = 30,980.52 × 12,379.22
4. Step 4: Simplify right side
   22,450.67x = 383,514,517.89
5. Step 5: Solve for x
   x = 383,514,517.89/22,450.67
6. Step 6: Final answer
   x = 17,082.55