Finding the Fourth Proportional to 17,867.78, 24,659.03 and 9,912.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,867.78 : 24,659.03 = 9,912.56 : x
2. Step 2: Convert to fraction form
   17,867.78/24,659.03 = 9,912.56/x
3. Step 3: Cross multiply
   17,867.78x = 24,659.03 × 9,912.56
4. Step 4: Simplify right side
   17,867.78x = 244,434,200.85
5. Step 5: Solve for x
   x = 244,434,200.85/17,867.78
6. Step 6: Final answer
   x = 13,680.17