Finding the Fourth Proportional to 21,030.27, 31,540.54 and 6,235.62

Step by Step Solution

1. Step 1: Write the proportion equation
   21,030.27 : 31,540.54 = 6,235.62 : x
2. Step 2: Convert to fraction form
   21,030.27/31,540.54 = 6,235.62/x
3. Step 3: Cross multiply
   21,030.27x = 31,540.54 × 6,235.62
4. Step 4: Simplify right side
   21,030.27x = 196,674,822.03
5. Step 5: Solve for x
   x = 196,674,822.03/21,030.27
6. Step 6: Final answer
   x = 9,351.99