Finding the Fourth Proportional to 22,179.33, 30,601.62 and 12,619.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,179.33 : 30,601.62 = 12,619.31 : x
2. Step 2: Convert to fraction form
   22,179.33/30,601.62 = 12,619.31/x
3. Step 3: Cross multiply
   22,179.33x = 30,601.62 × 12,619.31
4. Step 4: Simplify right side
   22,179.33x = 386,171,176.27
5. Step 5: Solve for x
   x = 386,171,176.27/22,179.33
6. Step 6: Final answer
   x = 17,411.31