Finding the Fourth Proportional to 32,763.13, 49,144.69 and 8,139.13

Step by Step Solution

1. Step 1: Write the proportion equation
   32,763.13 : 49,144.69 = 8,139.13 : x
2. Step 2: Convert to fraction form
   32,763.13/49,144.69 = 8,139.13/x
3. Step 3: Cross multiply
   32,763.13x = 49,144.69 × 8,139.13
4. Step 4: Simplify right side
   32,763.13x = 399,995,020.72
5. Step 5: Solve for x
   x = 399,995,020.72/32,763.13
6. Step 6: Final answer
   x = 12,208.69