Finding the Fourth Proportional to 5,142.78, 7,707.42 and 2,369.07

Step by Step Solution

1. Step 1: Write the proportion equation
   5,142.78 : 7,707.42 = 2,369.07 : x
2. Step 2: Convert to fraction form
   5,142.78/7,707.42 = 2,369.07/x
3. Step 3: Cross multiply
   5,142.78x = 7,707.42 × 2,369.07
4. Step 4: Simplify right side
   5,142.78x = 18,259,417.50
5. Step 5: Solve for x
   x = 18,259,417.50/5,142.78
6. Step 6: Final answer
   x = 3,550.50