Finding the Fourth Proportional to 11,661.54, 17,488.50 and 3,868.26

Step by Step Solution

1. Step 1: Write the proportion equation
   11,661.54 : 17,488.50 = 3,868.26 : x
2. Step 2: Convert to fraction form
   11,661.54/17,488.50 = 3,868.26/x
3. Step 3: Cross multiply
   11,661.54x = 17,488.50 × 3,868.26
4. Step 4: Simplify right side
   11,661.54x = 67,650,065.01
5. Step 5: Solve for x
   x = 67,650,065.01/11,661.54
6. Step 6: Final answer
   x = 5,801.13