Finding the Fourth Proportional to 10,756.80, 16,136.64 and 3,361.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,756.80 : 16,136.64 = 3,361.76 : x
2. Step 2: Convert to fraction form
   10,756.80/16,136.64 = 3,361.76/x
3. Step 3: Cross multiply
   10,756.80x = 16,136.64 × 3,361.76
4. Step 4: Simplify right side
   10,756.80x = 54,247,510.89
5. Step 5: Solve for x
   x = 54,247,510.89/10,756.80
6. Step 6: Final answer
   x = 5,043.09