Finding the Fourth Proportional to 9,804.30, 14,700.78 and 3,228.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,804.30 : 14,700.78 = 3,228.72 : x
2. Step 2: Convert to fraction form
   9,804.30/14,700.78 = 3,228.72/x
3. Step 3: Cross multiply
   9,804.30x = 14,700.78 × 3,228.72
4. Step 4: Simplify right side
   9,804.30x = 47,464,702.40
5. Step 5: Solve for x
   x = 47,464,702.40/9,804.30
6. Step 6: Final answer
   x = 4,841.21