Finding the Fourth Proportional to 5,116.69, 7,672.78 and 2,345.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,116.69 : 7,672.78 = 2,345.10 : x
2. Step 2: Convert to fraction form
   5,116.69/7,672.78 = 2,345.10/x
3. Step 3: Cross multiply
   5,116.69x = 7,672.78 × 2,345.10
4. Step 4: Simplify right side
   5,116.69x = 17,993,436.38
5. Step 5: Solve for x
   x = 17,993,436.38/5,116.69
6. Step 6: Final answer
   x = 3,516.62