Finding the Fourth Proportional to 5,610.80, 8,399.88 and 3,656.24

Step by Step Solution

1. Step 1: Write the proportion equation
   5,610.80 : 8,399.88 = 3,656.24 : x
2. Step 2: Convert to fraction form
   5,610.80/8,399.88 = 3,656.24/x
3. Step 3: Cross multiply
   5,610.80x = 8,399.88 × 3,656.24
4. Step 4: Simplify right side
   5,610.80x = 30,711,977.25
5. Step 5: Solve for x
   x = 30,711,977.25/5,610.80
6. Step 6: Final answer
   x = 5,473.73