Finding the Fourth Proportional to 7,200.18, 10,803.46 and 2,816.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,200.18 : 10,803.46 = 2,816.16 : x
2. Step 2: Convert to fraction form
   7,200.18/10,803.46 = 2,816.16/x
3. Step 3: Cross multiply
   7,200.18x = 10,803.46 × 2,816.16
4. Step 4: Simplify right side
   7,200.18x = 30,424,271.91
5. Step 5: Solve for x
   x = 30,424,271.91/7,200.18
6. Step 6: Final answer
   x = 4,225.49