Finding the Fourth Proportional to 11,872.42, 17,808.71 and 3,551.65

Step by Step Solution

1. Step 1: Write the proportion equation
   11,872.42 : 17,808.71 = 3,551.65 : x
2. Step 2: Convert to fraction form
   11,872.42/17,808.71 = 3,551.65/x
3. Step 3: Cross multiply
   11,872.42x = 17,808.71 × 3,551.65
4. Step 4: Simplify right side
   11,872.42x = 63,250,262.57
5. Step 5: Solve for x
   x = 63,250,262.57/11,872.42
6. Step 6: Final answer
   x = 5,327.49