Finding the Fourth Proportional to 12,353.98, 17,048.49 and 6,688.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,353.98 : 17,048.49 = 6,688.72 : x
2. Step 2: Convert to fraction form
   12,353.98/17,048.49 = 6,688.72/x
3. Step 3: Cross multiply
   12,353.98x = 17,048.49 × 6,688.72
4. Step 4: Simplify right side
   12,353.98x = 114,032,576.03
5. Step 5: Solve for x
   x = 114,032,576.03/12,353.98
6. Step 6: Final answer
   x = 9,230.43