Finding the Fourth Proportional to 8,786.20, 12,124.91 and 5,009.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,786.20 : 12,124.91 = 5,009.53 : x
2. Step 2: Convert to fraction form
   8,786.20/12,124.91 = 5,009.53/x
3. Step 3: Cross multiply
   8,786.20x = 12,124.91 × 5,009.53
4. Step 4: Simplify right side
   8,786.20x = 60,740,100.39
5. Step 5: Solve for x
   x = 60,740,100.39/8,786.20
6. Step 6: Final answer
   x = 6,913.13