Finding the Fourth Proportional to 12,768.72, 17,620.56 and 7,103.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,768.72 : 17,620.56 = 7,103.34 : x
2. Step 2: Convert to fraction form
   12,768.72/17,620.56 = 7,103.34/x
3. Step 3: Cross multiply
   12,768.72x = 17,620.56 × 7,103.34
4. Step 4: Simplify right side
   12,768.72x = 125,164,828.67
5. Step 5: Solve for x
   x = 125,164,828.67/12,768.72
6. Step 6: Final answer
   x = 9,802.46