Finding the Fourth Proportional to 3,105.47, 4,667.42 and 2,876.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105.47 : 4,667.42 = 2,876.31 : x
2. Step 2: Convert to fraction form
   3,105.47/4,667.42 = 2,876.31/x
3. Step 3: Cross multiply
   3,105.47x = 4,667.42 × 2,876.31
4. Step 4: Simplify right side
   3,105.47x = 13,424,954.01
5. Step 5: Solve for x
   x = 13,424,954.01/3,105.47
6. Step 6: Final answer
   x = 4,323.00