Finding the Fourth Proportional to 9,951.84, 14,930.88 and 4,111.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,951.84 : 14,930.88 = 4,111.20 : x
2. Step 2: Convert to fraction form
   9,951.84/14,930.88 = 4,111.20/x
3. Step 3: Cross multiply
   9,951.84x = 14,930.88 × 4,111.20
4. Step 4: Simplify right side
   9,951.84x = 61,383,833.86
5. Step 5: Solve for x
   x = 61,383,833.86/9,951.84
6. Step 6: Final answer
   x = 6,168.09