Finding the Fourth Proportional to 8,130.25, 12,195.94 and 3,449.73

Step by Step Solution

1. Step 1: Write the proportion equation
   8,130.25 : 12,195.94 = 3,449.73 : x
2. Step 2: Convert to fraction form
   8,130.25/12,195.94 = 3,449.73/x
3. Step 3: Cross multiply
   8,130.25x = 12,195.94 × 3,449.73
4. Step 4: Simplify right side
   8,130.25x = 42,072,667.62
5. Step 5: Solve for x
   x = 42,072,667.62/8,130.25
6. Step 6: Final answer
   x = 5,174.83