Finding the Fourth Proportional to 6,459.59, 8,911.94 and 4,222.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,459.59 : 8,911.94 = 4,222.76 : x
2. Step 2: Convert to fraction form
   6,459.59/8,911.94 = 4,222.76/x
3. Step 3: Cross multiply
   6,459.59x = 8,911.94 × 4,222.76
4. Step 4: Simplify right side
   6,459.59x = 37,632,983.75
5. Step 5: Solve for x
   x = 37,632,983.75/6,459.59
6. Step 6: Final answer
   x = 5,825.91