Finding the Fourth Proportional to 21,269.15, 31,902.56 and 6,476.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,269.15 : 31,902.56 = 6,476.83 : x
2. Step 2: Convert to fraction form
   21,269.15/31,902.56 = 6,476.83/x
3. Step 3: Cross multiply
   21,269.15x = 31,902.56 × 6,476.83
4. Step 4: Simplify right side
   21,269.15x = 206,627,369.83
5. Step 5: Solve for x
   x = 206,627,369.83/21,269.15
6. Step 6: Final answer
   x = 9,714.89