Finding the Fourth Proportional to 9,141.29, 12,619.37 and 5,785.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.29 : 12,619.37 = 5,785.73 : x
2. Step 2: Convert to fraction form
   9,141.29/12,619.37 = 5,785.73/x
3. Step 3: Cross multiply
   9,141.29x = 12,619.37 × 5,785.73
4. Step 4: Simplify right side
   9,141.29x = 73,012,238.66
5. Step 5: Solve for x
   x = 73,012,238.66/9,141.29
6. Step 6: Final answer
   x = 7,987.08