Finding the Fourth Proportional to 6,111.72, 9,167.72 and 1,951.79

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.72 : 9,167.72 = 1,951.79 : x
2. Step 2: Convert to fraction form
   6,111.72/9,167.72 = 1,951.79/x
3. Step 3: Cross multiply
   6,111.72x = 9,167.72 × 1,951.79
4. Step 4: Simplify right side
   6,111.72x = 17,893,408.62
5. Step 5: Solve for x
   x = 17,893,408.62/6,111.72
6. Step 6: Final answer
   x = 2,927.72