Finding the Fourth Proportional to 6,300.78, 9,452.52 and 1,918.59

Step by Step Solution

1. Step 1: Write the proportion equation
   6,300.78 : 9,452.52 = 1,918.59 : x
2. Step 2: Convert to fraction form
   6,300.78/9,452.52 = 1,918.59/x
3. Step 3: Cross multiply
   6,300.78x = 9,452.52 × 1,918.59
4. Step 4: Simplify right side
   6,300.78x = 18,135,510.35
5. Step 5: Solve for x
   x = 18,135,510.35/6,300.78
6. Step 6: Final answer
   x = 2,878.30