Finding the Fourth Proportional to 12,388.95, 17,096.61 and 6,723.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,388.95 : 17,096.61 = 6,723.72 : x
2. Step 2: Convert to fraction form
   12,388.95/17,096.61 = 6,723.72/x
3. Step 3: Cross multiply
   12,388.95x = 17,096.61 × 6,723.72
4. Step 4: Simplify right side
   12,388.95x = 114,952,818.59
5. Step 5: Solve for x
   x = 114,952,818.59/12,388.95
6. Step 6: Final answer
   x = 9,278.66