Finding the Fourth Proportional to 16,719.09, 23,072.60 and 10,005

Step by Step Solution

1. Step 1: Write the proportion equation
   16,719.09 : 23,072.60 = 10,005 : x
2. Step 2: Convert to fraction form
   16,719.09/23,072.60 = 10,005/x
3. Step 3: Cross multiply
   16,719.09x = 23,072.60 × 10,005
4. Step 4: Simplify right side
   16,719.09x = 230,841,363
5. Step 5: Solve for x
   x = 230,841,363/16,719.09
6. Step 6: Final answer
   x = 13,807.05