Finding the Fourth Proportional to 5,500.71, 8,251.35 and 1,605.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,500.71 : 8,251.35 = 1,605.42 : x
2. Step 2: Convert to fraction form
   5,500.71/8,251.35 = 1,605.42/x
3. Step 3: Cross multiply
   5,500.71x = 8,251.35 × 1,605.42
4. Step 4: Simplify right side
   5,500.71x = 13,246,882.32
5. Step 5: Solve for x
   x = 13,246,882.32/5,500.71
6. Step 6: Final answer
   x = 2,408.21