Finding the Fourth Proportional to 20,196.86, 30,309.13 and 7,049.23

Step by Step Solution

1. Step 1: Write the proportion equation
   20,196.86 : 30,309.13 = 7,049.23 : x
2. Step 2: Convert to fraction form
   20,196.86/30,309.13 = 7,049.23/x
3. Step 3: Cross multiply
   20,196.86x = 30,309.13 × 7,049.23
4. Step 4: Simplify right side
   20,196.86x = 213,656,132.00
5. Step 5: Solve for x
   x = 213,656,132.00/20,196.86
6. Step 6: Final answer
   x = 10,578.68