Finding the Fourth Proportional to 16,616.16, 22,914.90 and 12,377.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,616.16 : 22,914.90 = 12,377.61 : x
2. Step 2: Convert to fraction form
   16,616.16/22,914.90 = 12,377.61/x
3. Step 3: Cross multiply
   16,616.16x = 22,914.90 × 12,377.61
4. Step 4: Simplify right side
   16,616.16x = 283,631,695.39
5. Step 5: Solve for x
   x = 283,631,695.39/16,616.16
6. Step 6: Final answer
   x = 17,069.63