Finding the Fourth Proportional to 5,960.42, 8,217.55 and 5,130.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,960.42 : 8,217.55 = 5,130.04 : x
2. Step 2: Convert to fraction form
   5,960.42/8,217.55 = 5,130.04/x
3. Step 3: Cross multiply
   5,960.42x = 8,217.55 × 5,130.04
4. Step 4: Simplify right side
   5,960.42x = 42,156,360.20
5. Step 5: Solve for x
   x = 42,156,360.20/5,960.42
6. Step 6: Final answer
   x = 7,072.72