Finding the Fourth Proportional to 12,700.96, 17,527.94 and 7,665.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.96 : 17,527.94 = 7,665.09 : x
2. Step 2: Convert to fraction form
   12,700.96/17,527.94 = 7,665.09/x
3. Step 3: Cross multiply
   12,700.96x = 17,527.94 × 7,665.09
4. Step 4: Simplify right side
   12,700.96x = 134,353,254.72
5. Step 5: Solve for x
   x = 134,353,254.72/12,700.96
6. Step 6: Final answer
   x = 10,578.20