Finding the Fourth Proportional to 9,986.48, 13,781.24 and 5,510.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,986.48 : 13,781.24 = 5,510.27 : x
2. Step 2: Convert to fraction form
   9,986.48/13,781.24 = 5,510.27/x
3. Step 3: Cross multiply
   9,986.48x = 13,781.24 × 5,510.27
4. Step 4: Simplify right side
   9,986.48x = 75,938,256.88
5. Step 5: Solve for x
   x = 75,938,256.88/9,986.48
6. Step 6: Final answer
   x = 7,604.11