Finding the Fourth Proportional to 6,517.78, 8,994.18 and 3,685.48

Step by Step Solution

1. Step 1: Write the proportion equation
   6,517.78 : 8,994.18 = 3,685.48 : x
2. Step 2: Convert to fraction form
   6,517.78/8,994.18 = 3,685.48/x
3. Step 3: Cross multiply
   6,517.78x = 8,994.18 × 3,685.48
4. Step 4: Simplify right side
   6,517.78x = 33,147,870.51
5. Step 5: Solve for x
   x = 33,147,870.51/6,517.78
6. Step 6: Final answer
   x = 5,085.76