Finding the Fourth Proportional to 10,866.57, 16,301.69 and 3,368.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,866.57 : 16,301.69 = 3,368.40 : x
2. Step 2: Convert to fraction form
   10,866.57/16,301.69 = 3,368.40/x
3. Step 3: Cross multiply
   10,866.57x = 16,301.69 × 3,368.40
4. Step 4: Simplify right side
   10,866.57x = 54,910,595.75
5. Step 5: Solve for x
   x = 54,910,595.75/10,866.57
6. Step 6: Final answer
   x = 5,053.17