Finding the Fourth Proportional to 9,936.88, 13,712.84 and 5,399.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,936.88 : 13,712.84 = 5,399.52 : x
2. Step 2: Convert to fraction form
   9,936.88/13,712.84 = 5,399.52/x
3. Step 3: Cross multiply
   9,936.88x = 13,712.84 × 5,399.52
4. Step 4: Simplify right side
   9,936.88x = 74,042,753.84
5. Step 5: Solve for x
   x = 74,042,753.84/9,936.88
6. Step 6: Final answer
   x = 7,451.31