Finding the Fourth Proportional to 16,380.72, 24,573.81 and 5,136.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,380.72 : 24,573.81 = 5,136.80 : x
2. Step 2: Convert to fraction form
   16,380.72/24,573.81 = 5,136.80/x
3. Step 3: Cross multiply
   16,380.72x = 24,573.81 × 5,136.80
4. Step 4: Simplify right side
   16,380.72x = 126,230,624.34
5. Step 5: Solve for x
   x = 126,230,624.34/16,380.72
6. Step 6: Final answer
   x = 7,706.05