Finding the Fourth Proportional to 22,609.35, 31,194.59 and 13,176.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,609.35 : 31,194.59 = 13,176.09 : x
2. Step 2: Convert to fraction form
   22,609.35/31,194.59 = 13,176.09/x
3. Step 3: Cross multiply
   22,609.35x = 31,194.59 × 13,176.09
4. Step 4: Simplify right side
   22,609.35x = 411,022,659.47
5. Step 5: Solve for x
   x = 411,022,659.47/22,609.35
6. Step 6: Final answer
   x = 18,179.32