Finding the Fourth Proportional to 5,661.99, 8,435.59 and 5,383.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,661.99 : 8,435.59 = 5,383.15 : x
2. Step 2: Convert to fraction form
   5,661.99/8,435.59 = 5,383.15/x
3. Step 3: Cross multiply
   5,661.99x = 8,435.59 × 5,383.15
4. Step 4: Simplify right side
   5,661.99x = 45,410,011.76
5. Step 5: Solve for x
   x = 45,410,011.76/5,661.99
6. Step 6: Final answer
   x = 8,020.15