Finding the Fourth Proportional to 5,587.10, 7,709.74 and 3,069.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,587.10 : 7,709.74 = 3,069.15 : x
2. Step 2: Convert to fraction form
   5,587.10/7,709.74 = 3,069.15/x
3. Step 3: Cross multiply
   5,587.10x = 7,709.74 × 3,069.15
4. Step 4: Simplify right side
   5,587.10x = 23,662,348.52
5. Step 5: Solve for x
   x = 23,662,348.52/5,587.10
6. Step 6: Final answer
   x = 4,235.18