Finding the Fourth Proportional to 5,118.30, 7,680.42 and 3,365.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,118.30 : 7,680.42 = 3,365.46 : x
2. Step 2: Convert to fraction form
   5,118.30/7,680.42 = 3,365.46/x
3. Step 3: Cross multiply
   5,118.30x = 7,680.42 × 3,365.46
4. Step 4: Simplify right side
   5,118.30x = 25,848,146.29
5. Step 5: Solve for x
   x = 25,848,146.29/5,118.30
6. Step 6: Final answer
   x = 5,050.14