Finding the Fourth Proportional to 9,783.40, 14,681.49 and 4,857.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,783.40 : 14,681.49 = 4,857.25 : x
2. Step 2: Convert to fraction form
   9,783.40/14,681.49 = 4,857.25/x
3. Step 3: Cross multiply
   9,783.40x = 14,681.49 × 4,857.25
4. Step 4: Simplify right side
   9,783.40x = 71,311,667.30
5. Step 5: Solve for x
   x = 71,311,667.30/9,783.40
6. Step 6: Final answer
   x = 7,289.05