Finding the Fourth Proportional to 12,806.83, 17,673.51 and 7,141.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,806.83 : 17,673.51 = 7,141.96 : x
2. Step 2: Convert to fraction form
   12,806.83/17,673.51 = 7,141.96/x
3. Step 3: Cross multiply
   12,806.83x = 17,673.51 × 7,141.96
4. Step 4: Simplify right side
   12,806.83x = 126,223,501.48
5. Step 5: Solve for x
   x = 126,223,501.48/12,806.83
6. Step 6: Final answer
   x = 9,855.95