Finding the Fourth Proportional to 9,965.09, 13,752.79 and 7,442.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,965.09 : 13,752.79 = 7,442.82 : x
2. Step 2: Convert to fraction form
   9,965.09/13,752.79 = 7,442.82/x
3. Step 3: Cross multiply
   9,965.09x = 13,752.79 × 7,442.82
4. Step 4: Simplify right side
   9,965.09x = 102,359,559.07
5. Step 5: Solve for x
   x = 102,359,559.07/9,965.09
6. Step 6: Final answer
   x = 10,271.82