Finding the Fourth Proportional to 13,642.05, 18,826.04 and 7,673.73

Step by Step Solution

1. Step 1: Write the proportion equation
   13,642.05 : 18,826.04 = 7,673.73 : x
2. Step 2: Convert to fraction form
   13,642.05/18,826.04 = 7,673.73/x
3. Step 3: Cross multiply
   13,642.05x = 18,826.04 × 7,673.73
4. Step 4: Simplify right side
   13,642.05x = 144,465,947.93
5. Step 5: Solve for x
   x = 144,465,947.93/13,642.05
6. Step 6: Final answer
   x = 10,589.75