Finding the Fourth Proportional to 9,766.84, 13,477.43 and 5,518.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,766.84 : 13,477.43 = 5,518.27 : x
2. Step 2: Convert to fraction form
   9,766.84/13,477.43 = 5,518.27/x
3. Step 3: Cross multiply
   9,766.84x = 13,477.43 × 5,518.27
4. Step 4: Simplify right side
   9,766.84x = 74,372,060.24
5. Step 5: Solve for x
   x = 74,372,060.24/9,766.84
6. Step 6: Final answer
   x = 7,614.75