Finding the Fourth Proportional to 12,388.72, 17,096.54 and 6,723.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,388.72 : 17,096.54 = 6,723.46 : x
2. Step 2: Convert to fraction form
   12,388.72/17,096.54 = 6,723.46/x
3. Step 3: Cross multiply
   12,388.72x = 17,096.54 × 6,723.46
4. Step 4: Simplify right side
   12,388.72x = 114,947,902.83
5. Step 5: Solve for x
   x = 114,947,902.83/12,388.72
6. Step 6: Final answer
   x = 9,278.43