Finding the Fourth Proportional to 16,688.63, 23,030.33 and 10,401

Step by Step Solution

1. Step 1: Write the proportion equation
   16,688.63 : 23,030.33 = 10,401 : x
2. Step 2: Convert to fraction form
   16,688.63/23,030.33 = 10,401/x
3. Step 3: Cross multiply
   16,688.63x = 23,030.33 × 10,401
4. Step 4: Simplify right side
   16,688.63x = 239,538,410.33
5. Step 5: Solve for x
   x = 239,538,410.33/16,688.63
6. Step 6: Final answer
   x = 14,353.39