Finding the Fourth Proportional to 5,185.14, 7,155.72 and 2,947.38

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185.14 : 7,155.72 = 2,947.38 : x
2. Step 2: Convert to fraction form
   5,185.14/7,155.72 = 2,947.38/x
3. Step 3: Cross multiply
   5,185.14x = 7,155.72 × 2,947.38
4. Step 4: Simplify right side
   5,185.14x = 21,090,626.01
5. Step 5: Solve for x
   x = 21,090,626.01/5,185.14
6. Step 6: Final answer
   x = 4,067.51