Finding the Fourth Proportional to 12,300.60, 16,974.59 and 6,711.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,300.60 : 16,974.59 = 6,711.60 : x
2. Step 2: Convert to fraction form
   12,300.60/16,974.59 = 6,711.60/x
3. Step 3: Cross multiply
   12,300.60x = 16,974.59 × 6,711.60
4. Step 4: Simplify right side
   12,300.60x = 113,926,624.69
5. Step 5: Solve for x
   x = 113,926,624.69/12,300.60
6. Step 6: Final answer
   x = 9,261.88