Finding the Fourth Proportional to 16,859.72, 23,203.99 and 12,376.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,859.72 : 23,203.99 = 12,376.37 : x
2. Step 2: Convert to fraction form
   16,859.72/23,203.99 = 12,376.37/x
3. Step 3: Cross multiply
   16,859.72x = 23,203.99 × 12,376.37
4. Step 4: Simplify right side
   16,859.72x = 287,181,165.72
5. Step 5: Solve for x
   x = 287,181,165.72/16,859.72
6. Step 6: Final answer
   x = 17,033.57