Finding the Fourth Proportional to 9,145.87, 12,626.73 and 5,791.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,145.87 : 12,626.73 = 5,791.56 : x
2. Step 2: Convert to fraction form
   9,145.87/12,626.73 = 5,791.56/x
3. Step 3: Cross multiply
   9,145.87x = 12,626.73 × 5,791.56
4. Step 4: Simplify right side
   9,145.87x = 73,128,417.05
5. Step 5: Solve for x
   x = 73,128,417.05/9,145.87
6. Step 6: Final answer
   x = 7,995.79