Finding the Fourth Proportional to 7,200.27, 9,935.55 and 4,056.45

Step by Step Solution

1. Step 1: Write the proportion equation
   7,200.27 : 9,935.55 = 4,056.45 : x
2. Step 2: Convert to fraction form
   7,200.27/9,935.55 = 4,056.45/x
3. Step 3: Cross multiply
   7,200.27x = 9,935.55 × 4,056.45
4. Step 4: Simplify right side
   7,200.27x = 40,303,061.80
5. Step 5: Solve for x
   x = 40,303,061.80/7,200.27
6. Step 6: Final answer
   x = 5,597.44