Finding the Fourth Proportional to 6,475.39, 8,936.01 and 3,680.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,475.39 : 8,936.01 = 3,680.89 : x
2. Step 2: Convert to fraction form
   6,475.39/8,936.01 = 3,680.89/x
3. Step 3: Cross multiply
   6,475.39x = 8,936.01 × 3,680.89
4. Step 4: Simplify right side
   6,475.39x = 32,892,469.85
5. Step 5: Solve for x
   x = 32,892,469.85/6,475.39
6. Step 6: Final answer
   x = 5,079.61