Finding the Fourth Proportional to 11,796.58, 17,696.64 and 3,899.92

Step by Step Solution

1. Step 1: Write the proportion equation
   11,796.58 : 17,696.64 = 3,899.92 : x
2. Step 2: Convert to fraction form
   11,796.58/17,696.64 = 3,899.92/x
3. Step 3: Cross multiply
   11,796.58x = 17,696.64 × 3,899.92
4. Step 4: Simplify right side
   11,796.58x = 69,015,480.27
5. Step 5: Solve for x
   x = 69,015,480.27/11,796.58
6. Step 6: Final answer
   x = 5,850.47