Finding the Fourth Proportional to 6,301.89, 9,451.71 and 1,918.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,301.89 : 9,451.71 = 1,918.31 : x
2. Step 2: Convert to fraction form
   6,301.89/9,451.71 = 1,918.31/x
3. Step 3: Cross multiply
   6,301.89x = 9,451.71 × 1,918.31
4. Step 4: Simplify right side
   6,301.89x = 18,131,262.55
5. Step 5: Solve for x
   x = 18,131,262.55/6,301.89
6. Step 6: Final answer
   x = 2,877.12