Finding the Fourth Proportional to 11,661.84, 17,480.61 and 5,086.26

Step by Step Solution

1. Step 1: Write the proportion equation
   11,661.84 : 17,480.61 = 5,086.26 : x
2. Step 2: Convert to fraction form
   11,661.84/17,480.61 = 5,086.26/x
3. Step 3: Cross multiply
   11,661.84x = 17,480.61 × 5,086.26
4. Step 4: Simplify right side
   11,661.84x = 88,910,927.42
5. Step 5: Solve for x
   x = 88,910,927.42/11,661.84
6. Step 6: Final answer
   x = 7,624.09