Finding the Fourth Proportional to 6,031.62, 8,318.06 and 4,139.86

Step by Step Solution

1. Step 1: Write the proportion equation
   6,031.62 : 8,318.06 = 4,139.86 : x
2. Step 2: Convert to fraction form
   6,031.62/8,318.06 = 4,139.86/x
3. Step 3: Cross multiply
   6,031.62x = 8,318.06 × 4,139.86
4. Step 4: Simplify right side
   6,031.62x = 34,435,603.87
5. Step 5: Solve for x
   x = 34,435,603.87/6,031.62
6. Step 6: Final answer
   x = 5,709.18