Finding the Fourth Proportional to 16,857.72, 23,201.24 and 12,374.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,857.72 : 23,201.24 = 12,374.37 : x
2. Step 2: Convert to fraction form
   16,857.72/23,201.24 = 12,374.37/x
3. Step 3: Cross multiply
   16,857.72x = 23,201.24 × 12,374.37
4. Step 4: Simplify right side
   16,857.72x = 287,100,666.35
5. Step 5: Solve for x
   x = 287,100,666.35/16,857.72
6. Step 6: Final answer
   x = 17,030.81