Finding the Fourth Proportional to 9,821.98, 13,559.17 and 7,693.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,821.98 : 13,559.17 = 7,693.84 : x
2. Step 2: Convert to fraction form
   9,821.98/13,559.17 = 7,693.84/x
3. Step 3: Cross multiply
   9,821.98x = 13,559.17 × 7,693.84
4. Step 4: Simplify right side
   9,821.98x = 104,322,016.72
5. Step 5: Solve for x
   x = 104,322,016.72/9,821.98
6. Step 6: Final answer
   x = 10,621.29