Finding the Fourth Proportional to 5,609.15, 7,738.76 and 3,621.02

Step by Step Solution

1. Step 1: Write the proportion equation
   5,609.15 : 7,738.76 = 3,621.02 : x
2. Step 2: Convert to fraction form
   5,609.15/7,738.76 = 3,621.02/x
3. Step 3: Cross multiply
   5,609.15x = 7,738.76 × 3,621.02
4. Step 4: Simplify right side
   5,609.15x = 28,022,233.13
5. Step 5: Solve for x
   x = 28,022,233.13/5,609.15
6. Step 6: Final answer
   x = 4,995.81