Finding the Fourth Proportional to 7,978.69, 11,009.28 and 4,441.83

Step by Step Solution

1. Step 1: Write the proportion equation
   7,978.69 : 11,009.28 = 4,441.83 : x
2. Step 2: Convert to fraction form
   7,978.69/11,009.28 = 4,441.83/x
3. Step 3: Cross multiply
   7,978.69x = 11,009.28 × 4,441.83
4. Step 4: Simplify right side
   7,978.69x = 48,901,350.18
5. Step 5: Solve for x
   x = 48,901,350.18/7,978.69
6. Step 6: Final answer
   x = 6,128.99