Finding the Fourth Proportional to 12,019.32, 16,594.02 and 7,771.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.32 : 16,594.02 = 7,771.68 : x
2. Step 2: Convert to fraction form
   12,019.32/16,594.02 = 7,771.68/x
3. Step 3: Cross multiply
   12,019.32x = 16,594.02 × 7,771.68
4. Step 4: Simplify right side
   12,019.32x = 128,963,413.35
5. Step 5: Solve for x
   x = 128,963,413.35/12,019.32
6. Step 6: Final answer
   x = 10,729.68