Finding the Fourth Proportional to 12,019.68, 16,596.78 and 7,990.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.68 : 16,596.78 = 7,990.32 : x
2. Step 2: Convert to fraction form
   12,019.68/16,596.78 = 7,990.32/x
3. Step 3: Cross multiply
   12,019.68x = 16,596.78 × 7,990.32
4. Step 4: Simplify right side
   12,019.68x = 132,613,583.17
5. Step 5: Solve for x
   x = 132,613,583.17/12,019.68
6. Step 6: Final answer
   x = 11,033.04