Finding the Fourth Proportional to 10,855.49, 16,272.07 and 4,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,855.49 : 16,272.07 = 4,936.50 : x
2. Step 2: Convert to fraction form
   10,855.49/16,272.07 = 4,936.50/x
3. Step 3: Cross multiply
   10,855.49x = 16,272.07 × 4,936.50
4. Step 4: Simplify right side
   10,855.49x = 80,327,061.21
5. Step 5: Solve for x
   x = 80,327,061.21/10,855.49
6. Step 6: Final answer
   x = 7,399.67