Finding the Fourth Proportional to 9,483.78, 14,215.82 and 3,940.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,483.78 : 14,215.82 = 3,940.14 : x
2. Step 2: Convert to fraction form
   9,483.78/14,215.82 = 3,940.14/x
3. Step 3: Cross multiply
   9,483.78x = 14,215.82 × 3,940.14
4. Step 4: Simplify right side
   9,483.78x = 56,012,321.01
5. Step 5: Solve for x
   x = 56,012,321.01/9,483.78
6. Step 6: Final answer
   x = 5,906.12