Finding the Fourth Proportional to 16,186.72, 22,304.82 and 12,409.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,186.72 : 22,304.82 = 12,409.96 : x
2. Step 2: Convert to fraction form
   16,186.72/22,304.82 = 12,409.96/x
3. Step 3: Cross multiply
   16,186.72x = 22,304.82 × 12,409.96
4. Step 4: Simplify right side
   16,186.72x = 276,801,924.01
5. Step 5: Solve for x
   x = 276,801,924.01/16,186.72
6. Step 6: Final answer
   x = 17,100.56