Finding the Fourth Proportional to 5,443.00, 8,161.43 and 4,978.60

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.00 : 8,161.43 = 4,978.60 : x
2. Step 2: Convert to fraction form
   5,443.00/8,161.43 = 4,978.60/x
3. Step 3: Cross multiply
   5,443.00x = 8,161.43 × 4,978.60
4. Step 4: Simplify right side
   5,443.00x = 40,632,450.10
5. Step 5: Solve for x
   x = 40,632,450.10/5,443.00
6. Step 6: Final answer
   x = 7,465.09