Finding the Fourth Proportional to 10,936.52, 16,401.28 and 3,539.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,936.52 : 16,401.28 = 3,539.40 : x
2. Step 2: Convert to fraction form
   10,936.52/16,401.28 = 3,539.40/x
3. Step 3: Cross multiply
   10,936.52x = 16,401.28 × 3,539.40
4. Step 4: Simplify right side
   10,936.52x = 58,050,690.43
5. Step 5: Solve for x
   x = 58,050,690.43/10,936.52
6. Step 6: Final answer
   x = 5,307.97