Finding the Fourth Proportional to 17,840.88, 26,757.12 and 7,974.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,840.88 : 26,757.12 = 7,974.72 : x
2. Step 2: Convert to fraction form
   17,840.88/26,757.12 = 7,974.72/x
3. Step 3: Cross multiply
   17,840.88x = 26,757.12 × 7,974.72
4. Step 4: Simplify right side
   17,840.88x = 213,380,540.01
5. Step 5: Solve for x
   x = 213,380,540.01/17,840.88
6. Step 6: Final answer
   x = 11,960.20