Finding the Fourth Proportional to 9,940.57, 14,910.78 and 3,015.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.57 : 14,910.78 = 3,015.07 : x
2. Step 2: Convert to fraction form
   9,940.57/14,910.78 = 3,015.07/x
3. Step 3: Cross multiply
   9,940.57x = 14,910.78 × 3,015.07
4. Step 4: Simplify right side
   9,940.57x = 44,957,019.48
5. Step 5: Solve for x
   x = 44,957,019.48/9,940.57
6. Step 6: Final answer
   x = 4,522.58