Finding the Fourth Proportional to 9,757.43, 14,638.89 and 3,918.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,757.43 : 14,638.89 = 3,918.14 : x
2. Step 2: Convert to fraction form
   9,757.43/14,638.89 = 3,918.14/x
3. Step 3: Cross multiply
   9,757.43x = 14,638.89 × 3,918.14
4. Step 4: Simplify right side
   9,757.43x = 57,357,200.87
5. Step 5: Solve for x
   x = 57,357,200.87/9,757.43
6. Step 6: Final answer
   x = 5,878.31