Finding the Fourth Proportional to 11,871.74, 17,804.50 and 3,549.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,871.74 : 17,804.50 = 3,549.89 : x
2. Step 2: Convert to fraction form
   11,871.74/17,804.50 = 3,549.89/x
3. Step 3: Cross multiply
   11,871.74x = 17,804.50 × 3,549.89
4. Step 4: Simplify right side
   11,871.74x = 63,204,016.51
5. Step 5: Solve for x
   x = 63,204,016.51/11,871.74
6. Step 6: Final answer
   x = 5,323.91