Finding the Fourth Proportional to 11,019.39, 15,206.77 and 5,983.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,019.39 : 15,206.77 = 5,983.61 : x
2. Step 2: Convert to fraction form
   11,019.39/15,206.77 = 5,983.61/x
3. Step 3: Cross multiply
   11,019.39x = 15,206.77 × 5,983.61
4. Step 4: Simplify right side
   11,019.39x = 90,991,312.49
5. Step 5: Solve for x
   x = 90,991,312.49/11,019.39
6. Step 6: Final answer
   x = 8,257.38