Finding the Fourth Proportional to 16,185.72, 22,303.44 and 12,408.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,185.72 : 22,303.44 = 12,408.96 : x
2. Step 2: Convert to fraction form
   16,185.72/22,303.44 = 12,408.96/x
3. Step 3: Cross multiply
   16,185.72x = 22,303.44 × 12,408.96
4. Step 4: Simplify right side
   16,185.72x = 276,762,494.82
5. Step 5: Solve for x
   x = 276,762,494.82/16,185.72
6. Step 6: Final answer
   x = 17,099.18