Finding the Fourth Proportional to 10,165.14, 14,028.12 and 7,186.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,165.14 : 14,028.12 = 7,186.32 : x
2. Step 2: Convert to fraction form
   10,165.14/14,028.12 = 7,186.32/x
3. Step 3: Cross multiply
   10,165.14x = 14,028.12 × 7,186.32
4. Step 4: Simplify right side
   10,165.14x = 100,810,559.32
5. Step 5: Solve for x
   x = 100,810,559.32/10,165.14
6. Step 6: Final answer
   x = 9,917.28