Finding the Fourth Proportional to 11,805.53, 17,704.04 and 3,906.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,805.53 : 17,704.04 = 3,906.59 : x
2. Step 2: Convert to fraction form
   11,805.53/17,704.04 = 3,906.59/x
3. Step 3: Cross multiply
   11,805.53x = 17,704.04 × 3,906.59
4. Step 4: Simplify right side
   11,805.53x = 69,162,415.52
5. Step 5: Solve for x
   x = 69,162,415.52/11,805.53
6. Step 6: Final answer
   x = 5,858.48