Finding the Fourth Proportional to 9,766.49, 13,478.02 and 5,987.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,766.49 : 13,478.02 = 5,987.48 : x
2. Step 2: Convert to fraction form
   9,766.49/13,478.02 = 5,987.48/x
3. Step 3: Cross multiply
   9,766.49x = 13,478.02 × 5,987.48
4. Step 4: Simplify right side
   9,766.49x = 80,699,292.83
5. Step 5: Solve for x
   x = 80,699,292.83/9,766.49
6. Step 6: Final answer
   x = 8,262.88