Finding the Fourth Proportional to 8,789.16, 13,188.06 and 4,109.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,789.16 : 13,188.06 = 4,109.49 : x
2. Step 2: Convert to fraction form
   8,789.16/13,188.06 = 4,109.49/x
3. Step 3: Cross multiply
   8,789.16x = 13,188.06 × 4,109.49
4. Step 4: Simplify right side
   8,789.16x = 54,196,200.69
5. Step 5: Solve for x
   x = 54,196,200.69/8,789.16
6. Step 6: Final answer
   x = 6,166.25