Finding the Fourth Proportional to 12,768.82, 17,621.31 and 7,733.95

Step by Step Solution

1. Step 1: Write the proportion equation
   12,768.82 : 17,621.31 = 7,733.95 : x
2. Step 2: Convert to fraction form
   12,768.82/17,621.31 = 7,733.95/x
3. Step 3: Cross multiply
   12,768.82x = 17,621.31 × 7,733.95
4. Step 4: Simplify right side
   12,768.82x = 136,282,330.47
5. Step 5: Solve for x
   x = 136,282,330.47/12,768.82
6. Step 6: Final answer
   x = 10,673.06