Finding the Fourth Proportional to 12,495.15, 17,243.42 and 8,019

Step by Step Solution

1. Step 1: Write the proportion equation
   12,495.15 : 17,243.42 = 8,019 : x
2. Step 2: Convert to fraction form
   12,495.15/17,243.42 = 8,019/x
3. Step 3: Cross multiply
   12,495.15x = 17,243.42 × 8,019
4. Step 4: Simplify right side
   12,495.15x = 138,274,944.89
5. Step 5: Solve for x
   x = 138,274,944.89/12,495.15
6. Step 6: Final answer
   x = 11,066.29