Finding the Fourth Proportional to 16,378.72, 22,596.88 and 12,603.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,378.72 : 22,596.88 = 12,603.04 : x
2. Step 2: Convert to fraction form
   16,378.72/22,596.88 = 12,603.04/x
3. Step 3: Cross multiply
   16,378.72x = 22,596.88 × 12,603.04
4. Step 4: Simplify right side
   16,378.72x = 284,789,382.52
5. Step 5: Solve for x
   x = 284,789,382.52/16,378.72
6. Step 6: Final answer
   x = 17,387.77