Finding the Fourth Proportional to 8,774.69, 12,105.61 and 5,587.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,774.69 : 12,105.61 = 5,587.16 : x
2. Step 2: Convert to fraction form
   8,774.69/12,105.61 = 5,587.16/x
3. Step 3: Cross multiply
   8,774.69x = 12,105.61 × 5,587.16
4. Step 4: Simplify right side
   8,774.69x = 67,635,905.47
5. Step 5: Solve for x
   x = 67,635,905.47/8,774.69
6. Step 6: Final answer
   x = 7,708.07