Finding the Fourth Proportional to 12,006.05, 16,577.12 and 7,759.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,006.05 : 16,577.12 = 7,759.62 : x
2. Step 2: Convert to fraction form
   12,006.05/16,577.12 = 7,759.62/x
3. Step 3: Cross multiply
   12,006.05x = 16,577.12 × 7,759.62
4. Step 4: Simplify right side
   12,006.05x = 128,632,171.29
5. Step 5: Solve for x
   x = 128,632,171.29/12,006.05
6. Step 6: Final answer
   x = 10,713.95