Finding the Fourth Proportional to 9,782.56, 14,677.89 and 3,940.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,782.56 : 14,677.89 = 3,940.03 : x
2. Step 2: Convert to fraction form
   9,782.56/14,677.89 = 3,940.03/x
3. Step 3: Cross multiply
   9,782.56x = 14,677.89 × 3,940.03
4. Step 4: Simplify right side
   9,782.56x = 57,831,326.94
5. Step 5: Solve for x
   x = 57,831,326.94/9,782.56
6. Step 6: Final answer
   x = 5,911.68