Finding the Fourth Proportional to 6,263.24, 8,649.72 and 5,419.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,263.24 : 8,649.72 = 5,419.89 : x
2. Step 2: Convert to fraction form
   6,263.24/8,649.72 = 5,419.89/x
3. Step 3: Cross multiply
   6,263.24x = 8,649.72 × 5,419.89
4. Step 4: Simplify right side
   6,263.24x = 46,880,530.93
5. Step 5: Solve for x
   x = 46,880,530.93/6,263.24
6. Step 6: Final answer
   x = 7,485.03