Finding the Fourth Proportional to 8,768.73, 12,100.65 and 4,789.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,768.73 : 12,100.65 = 4,789.86 : x
2. Step 2: Convert to fraction form
   8,768.73/12,100.65 = 4,789.86/x
3. Step 3: Cross multiply
   8,768.73x = 12,100.65 × 4,789.86
4. Step 4: Simplify right side
   8,768.73x = 57,960,419.41
5. Step 5: Solve for x
   x = 57,960,419.41/8,768.73
6. Step 6: Final answer
   x = 6,609.90