Finding the Fourth Proportional to 20,019.12, 27,627.17 and 13,293.15

Step by Step Solution

1. Step 1: Write the proportion equation
   20,019.12 : 27,627.17 = 13,293.15 : x
2. Step 2: Convert to fraction form
   20,019.12/27,627.17 = 13,293.15/x
3. Step 3: Cross multiply
   20,019.12x = 27,627.17 × 13,293.15
4. Step 4: Simplify right side
   20,019.12x = 367,252,048.42
5. Step 5: Solve for x
   x = 367,252,048.42/20,019.12
6. Step 6: Final answer
   x = 18,345.06