Finding the Fourth Proportional to 16,180.72, 22,326.12 and 12,408.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,180.72 : 22,326.12 = 12,408.16 : x
2. Step 2: Convert to fraction form
   16,180.72/22,326.12 = 12,408.16/x
3. Step 3: Cross multiply
   16,180.72x = 22,326.12 × 12,408.16
4. Step 4: Simplify right side
   16,180.72x = 277,026,069.14
5. Step 5: Solve for x
   x = 277,026,069.14/16,180.72
6. Step 6: Final answer
   x = 17,120.75