Finding the Fourth Proportional to 5,405.50, 8,097.76 and 3,550.99

Step by Step Solution

1. Step 1: Write the proportion equation
   5,405.50 : 8,097.76 = 3,550.99 : x
2. Step 2: Convert to fraction form
   5,405.50/8,097.76 = 3,550.99/x
3. Step 3: Cross multiply
   5,405.50x = 8,097.76 × 3,550.99
4. Step 4: Simplify right side
   5,405.50x = 28,755,064.78
5. Step 5: Solve for x
   x = 28,755,064.78/5,405.50
6. Step 6: Final answer
   x = 5,319.59