Finding the Fourth Proportional to 21,269.20, 31,903.83 and 5,686.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,269.20 : 31,903.83 = 5,686.82 : x
2. Step 2: Convert to fraction form
   21,269.20/31,903.83 = 5,686.82/x
3. Step 3: Cross multiply
   21,269.20x = 31,903.83 × 5,686.82
4. Step 4: Simplify right side
   21,269.20x = 181,431,338.52
5. Step 5: Solve for x
   x = 181,431,338.52/21,269.20
6. Step 6: Final answer
   x = 8,530.24