Finding the Fourth Proportional to 9,986.02, 13,781.52 and 5,510.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,986.02 : 13,781.52 = 5,510.25 : x
2. Step 2: Convert to fraction form
   9,986.02/13,781.52 = 5,510.25/x
3. Step 3: Cross multiply
   9,986.02x = 13,781.52 × 5,510.25
4. Step 4: Simplify right side
   9,986.02x = 75,939,620.58
5. Step 5: Solve for x
   x = 75,939,620.58/9,986.02
6. Step 6: Final answer
   x = 7,604.60