Finding the Fourth Proportional to 6,731.87, 10,099.86 and 3,447.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,731.87 : 10,099.86 = 3,447.28 : x
2. Step 2: Convert to fraction form
   6,731.87/10,099.86 = 3,447.28/x
3. Step 3: Cross multiply
   6,731.87x = 10,099.86 × 3,447.28
4. Step 4: Simplify right side
   6,731.87x = 34,817,045.38
5. Step 5: Solve for x
   x = 34,817,045.38/6,731.87
6. Step 6: Final answer
   x = 5,171.97