Finding the Fourth Proportional to 8,768.71, 12,100.74 and 4,789.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,768.71 : 12,100.74 = 4,789.81 : x
2. Step 2: Convert to fraction form
   8,768.71/12,100.74 = 4,789.81/x
3. Step 3: Cross multiply
   8,768.71x = 12,100.74 × 4,789.81
4. Step 4: Simplify right side
   8,768.71x = 57,960,245.46
5. Step 5: Solve for x
   x = 57,960,245.46/8,768.71
6. Step 6: Final answer
   x = 6,609.89