Finding the Fourth Proportional to 6,386.59, 8,813.50 and 3,554.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,386.59 : 8,813.50 = 3,554.22 : x
2. Step 2: Convert to fraction form
   6,386.59/8,813.50 = 3,554.22/x
3. Step 3: Cross multiply
   6,386.59x = 8,813.50 × 3,554.22
4. Step 4: Simplify right side
   6,386.59x = 31,325,109.08
5. Step 5: Solve for x
   x = 31,325,109.08/6,386.59
6. Step 6: Final answer
   x = 4,904.83