Finding the Fourth Proportional to 6,300.89, 9,451.86 and 1,918.38

Step by Step Solution

1. Step 1: Write the proportion equation
   6,300.89 : 9,451.86 = 1,918.38 : x
2. Step 2: Convert to fraction form
   6,300.89/9,451.86 = 1,918.38/x
3. Step 3: Cross multiply
   6,300.89x = 9,451.86 × 1,918.38
4. Step 4: Simplify right side
   6,300.89x = 18,132,259.19
5. Step 5: Solve for x
   x = 18,132,259.19/6,300.89
6. Step 6: Final answer
   x = 2,877.73