Finding the Fourth Proportional to 9,815.81, 14,713.43 and 4,811.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,815.81 : 14,713.43 = 4,811.27 : x
2. Step 2: Convert to fraction form
   9,815.81/14,713.43 = 4,811.27/x
3. Step 3: Cross multiply
   9,815.81x = 14,713.43 × 4,811.27
4. Step 4: Simplify right side
   9,815.81x = 70,790,186.73
5. Step 5: Solve for x
   x = 70,790,186.73/9,815.81
6. Step 6: Final answer
   x = 7,211.86