Finding the Fourth Proportional to 9,986.48, 13,781.37 and 5,510.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,986.48 : 13,781.37 = 5,510.22 : x
2. Step 2: Convert to fraction form
   9,986.48/13,781.37 = 5,510.22/x
3. Step 3: Cross multiply
   9,986.48x = 13,781.37 × 5,510.22
4. Step 4: Simplify right side
   9,986.48x = 75,938,380.60
5. Step 5: Solve for x
   x = 75,938,380.60/9,986.48
6. Step 6: Final answer
   x = 7,604.12