Finding the Fourth Proportional to 6,282.77, 8,662.61 and 5,430.49

Step by Step Solution

1. Step 1: Write the proportion equation
   6,282.77 : 8,662.61 = 5,430.49 : x
2. Step 2: Convert to fraction form
   6,282.77/8,662.61 = 5,430.49/x
3. Step 3: Cross multiply
   6,282.77x = 8,662.61 × 5,430.49
4. Step 4: Simplify right side
   6,282.77x = 47,042,146.51
5. Step 5: Solve for x
   x = 47,042,146.51/6,282.77
6. Step 6: Final answer
   x = 7,487.49