Finding the Fourth Proportional to 10,942.84, 16,417.77 and 3,918.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,942.84 : 16,417.77 = 3,918.09 : x
2. Step 2: Convert to fraction form
   10,942.84/16,417.77 = 3,918.09/x
3. Step 3: Cross multiply
   10,942.84x = 16,417.77 × 3,918.09
4. Step 4: Simplify right side
   10,942.84x = 64,326,300.46
5. Step 5: Solve for x
   x = 64,326,300.46/10,942.84
6. Step 6: Final answer
   x = 5,878.39