Finding the Fourth Proportional to 22,180.33, 30,609.31 and 12,109.19

Step by Step Solution

1. Step 1: Write the proportion equation
   22,180.33 : 30,609.31 = 12,109.19 : x
2. Step 2: Convert to fraction form
   22,180.33/30,609.31 = 12,109.19/x
3. Step 3: Cross multiply
   22,180.33x = 30,609.31 × 12,109.19
4. Step 4: Simplify right side
   22,180.33x = 370,653,973.26
5. Step 5: Solve for x
   x = 370,653,973.26/22,180.33
6. Step 6: Final answer
   x = 16,710.94