Finding the Fourth Proportional to 10,817.34, 16,249.04 and 10,185.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,817.34 : 16,249.04 = 10,185.32 : x
2. Step 2: Convert to fraction form
   10,817.34/16,249.04 = 10,185.32/x
3. Step 3: Cross multiply
   10,817.34x = 16,249.04 × 10,185.32
4. Step 4: Simplify right side
   10,817.34x = 165,501,672.09
5. Step 5: Solve for x
   x = 165,501,672.09/10,817.34
6. Step 6: Final answer
   x = 15,299.66