Finding the Fourth Proportional to 6,388.25, 8,815.50 and 3,554.35

Step by Step Solution

1. Step 1: Write the proportion equation
   6,388.25 : 8,815.50 = 3,554.35 : x
2. Step 2: Convert to fraction form
   6,388.25/8,815.50 = 3,554.35/x
3. Step 3: Cross multiply
   6,388.25x = 8,815.50 × 3,554.35
4. Step 4: Simplify right side
   6,388.25x = 31,333,350.39
5. Step 5: Solve for x
   x = 31,333,350.39/6,388.25
6. Step 6: Final answer
   x = 4,904.84