Finding the Fourth Proportional to 3,942.82, 5,918.33 and 2,903.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942.82 : 5,918.33 = 2,903.99 : x
2. Step 2: Convert to fraction form
   3,942.82/5,918.33 = 2,903.99/x
3. Step 3: Cross multiply
   3,942.82x = 5,918.33 × 2,903.99
4. Step 4: Simplify right side
   3,942.82x = 17,186,776.86
5. Step 5: Solve for x
   x = 17,186,776.86/3,942.82
6. Step 6: Final answer
   x = 4,359.01