Finding the Fourth Proportional to 7,690.33, 10,608.51 and 5,142.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,690.33 : 10,608.51 = 5,142.48 : x
2. Step 2: Convert to fraction form
   7,690.33/10,608.51 = 5,142.48/x
3. Step 3: Cross multiply
   7,690.33x = 10,608.51 × 5,142.48
4. Step 4: Simplify right side
   7,690.33x = 54,554,050.50
5. Step 5: Solve for x
   x = 54,554,050.50/7,690.33
6. Step 6: Final answer
   x = 7,093.85