Finding the Fourth Proportional to 16,186.77, 22,351.82 and 12,447

Step by Step Solution

1. Step 1: Write the proportion equation
   16,186.77 : 22,351.82 = 12,447 : x
2. Step 2: Convert to fraction form
   16,186.77/22,351.82 = 12,447/x
3. Step 3: Cross multiply
   16,186.77x = 22,351.82 × 12,447
4. Step 4: Simplify right side
   16,186.77x = 278,213,041.31
5. Step 5: Solve for x
   x = 278,213,041.31/16,186.77
6. Step 6: Final answer
   x = 17,187.68