Finding the Fourth Proportional to 6,308.37, 8,642.51 and 6,071.91

Step by Step Solution

1. Step 1: Write the proportion equation
   6,308.37 : 8,642.51 = 6,071.91 : x
2. Step 2: Convert to fraction form
   6,308.37/8,642.51 = 6,071.91/x
3. Step 3: Cross multiply
   6,308.37x = 8,642.51 × 6,071.91
4. Step 4: Simplify right side
   6,308.37x = 52,476,542.89
5. Step 5: Solve for x
   x = 52,476,542.89/6,308.37
6. Step 6: Final answer
   x = 8,318.56