Finding the Fourth Proportional to 9,865.33, 14,788.37 and 3,940.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,865.33 : 14,788.37 = 3,940.45 : x
2. Step 2: Convert to fraction form
   9,865.33/14,788.37 = 3,940.45/x
3. Step 3: Cross multiply
   9,865.33x = 14,788.37 × 3,940.45
4. Step 4: Simplify right side
   9,865.33x = 58,272,805.45
5. Step 5: Solve for x
   x = 58,272,805.45/9,865.33
6. Step 6: Final answer
   x = 5,906.83