Finding the Fourth Proportional to 6,168.16, 9,256.34 and 5,758.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,168.16 : 9,256.34 = 5,758.10 : x
2. Step 2: Convert to fraction form
   6,168.16/9,256.34 = 5,758.10/x
3. Step 3: Cross multiply
   6,168.16x = 9,256.34 × 5,758.10
4. Step 4: Simplify right side
   6,168.16x = 53,298,934.18
5. Step 5: Solve for x
   x = 53,298,934.18/6,168.16
6. Step 6: Final answer
   x = 8,640.98