Finding the Fourth Proportional to 16,857.64, 23,265.69 and 10,146.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,857.64 : 23,265.69 = 10,146.90 : x
2. Step 2: Convert to fraction form
   16,857.64/23,265.69 = 10,146.90/x
3. Step 3: Cross multiply
   16,857.64x = 23,265.69 × 10,146.90
4. Step 4: Simplify right side
   16,857.64x = 236,074,554.10
5. Step 5: Solve for x
   x = 236,074,554.10/16,857.64
6. Step 6: Final answer
   x = 14,004.01