Finding the Fourth Proportional to 7,145.42, 9,856.08 and 5,152.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,145.42 : 9,856.08 = 5,152.82 : x
2. Step 2: Convert to fraction form
   7,145.42/9,856.08 = 5,152.82/x
3. Step 3: Cross multiply
   7,145.42x = 9,856.08 × 5,152.82
4. Step 4: Simplify right side
   7,145.42x = 50,786,556.87
5. Step 5: Solve for x
   x = 50,786,556.87/7,145.42
6. Step 6: Final answer
   x = 7,107.57