Finding the Fourth Proportional to 11,986.98, 17,971.69 and 5,741.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,986.98 : 17,971.69 = 5,741.61 : x
2. Step 2: Convert to fraction form
   11,986.98/17,971.69 = 5,741.61/x
3. Step 3: Cross multiply
   11,986.98x = 17,971.69 × 5,741.61
4. Step 4: Simplify right side
   11,986.98x = 103,186,435.02
5. Step 5: Solve for x
   x = 103,186,435.02/11,986.98
6. Step 6: Final answer
   x = 8,608.21