Finding the Fourth Proportional to 8,767.89, 12,099.15 and 4,788.19

Step by Step Solution

1. Step 1: Write the proportion equation
   8,767.89 : 12,099.15 = 4,788.19 : x
2. Step 2: Convert to fraction form
   8,767.89/12,099.15 = 4,788.19/x
3. Step 3: Cross multiply
   8,767.89x = 12,099.15 × 4,788.19
4. Step 4: Simplify right side
   8,767.89x = 57,933,029.04
5. Step 5: Solve for x
   x = 57,933,029.04/8,767.89
6. Step 6: Final answer
   x = 6,607.41