Finding the Fourth Proportional to 8,189.94, 12,284.82 and 3,505.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,189.94 : 12,284.82 = 3,505.98 : x
2. Step 2: Convert to fraction form
   8,189.94/12,284.82 = 3,505.98/x
3. Step 3: Cross multiply
   8,189.94x = 12,284.82 × 3,505.98
4. Step 4: Simplify right side
   8,189.94x = 43,070,333.22
5. Step 5: Solve for x
   x = 43,070,333.22/8,189.94
6. Step 6: Final answer
   x = 5,258.93