Finding the Fourth Proportional to 12,768.72, 17,620.92 and 7,462.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,768.72 : 17,620.92 = 7,462.49 : x
2. Step 2: Convert to fraction form
   12,768.72/17,620.92 = 7,462.49/x
3. Step 3: Cross multiply
   12,768.72x = 17,620.92 × 7,462.49
4. Step 4: Simplify right side
   12,768.72x = 131,495,851.19
5. Step 5: Solve for x
   x = 131,495,851.19/12,768.72
6. Step 6: Final answer
   x = 10,298.28