Finding the Fourth Proportional to 11,019.40, 15,206.79 and 5,983.63

Step by Step Solution

1. Step 1: Write the proportion equation
   11,019.40 : 15,206.79 = 5,983.63 : x
2. Step 2: Convert to fraction form
   11,019.40/15,206.79 = 5,983.63/x
3. Step 3: Cross multiply
   11,019.40x = 15,206.79 × 5,983.63
4. Step 4: Simplify right side
   11,019.40x = 90,991,804.85
5. Step 5: Solve for x
   x = 90,991,804.85/11,019.40
6. Step 6: Final answer
   x = 8,257.42