Finding the Fourth Proportional to 9,819.06, 14,728.79 and 3,975.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,819.06 : 14,728.79 = 3,975.72 : x
2. Step 2: Convert to fraction form
   9,819.06/14,728.79 = 3,975.72/x
3. Step 3: Cross multiply
   9,819.06x = 14,728.79 × 3,975.72
4. Step 4: Simplify right side
   9,819.06x = 58,557,544.98
5. Step 5: Solve for x
   x = 58,557,544.98/9,819.06
6. Step 6: Final answer
   x = 5,963.66