Finding the Fourth Proportional to 9,935.43, 13,710.98 and 5,459.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,935.43 : 13,710.98 = 5,459.28 : x
2. Step 2: Convert to fraction form
   9,935.43/13,710.98 = 5,459.28/x
3. Step 3: Cross multiply
   9,935.43x = 13,710.98 × 5,459.28
4. Step 4: Simplify right side
   9,935.43x = 74,852,078.89
5. Step 5: Solve for x
   x = 74,852,078.89/9,935.43
6. Step 6: Final answer
   x = 7,533.85