Finding the Fourth Proportional to 12,384.56, 17,093.68 and 7,666

Step by Step Solution

1. Step 1: Write the proportion equation
   12,384.56 : 17,093.68 = 7,666 : x
2. Step 2: Convert to fraction form
   12,384.56/17,093.68 = 7,666/x
3. Step 3: Cross multiply
   12,384.56x = 17,093.68 × 7,666
4. Step 4: Simplify right side
   12,384.56x = 131,040,150.88
5. Step 5: Solve for x
   x = 131,040,150.88/12,384.56
6. Step 6: Final answer
   x = 10,580.93