Finding the Fourth Proportional to 10,213.97, 14,100.68 and 7,940.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,213.97 : 14,100.68 = 7,940.30 : x
2. Step 2: Convert to fraction form
   10,213.97/14,100.68 = 7,940.30/x
3. Step 3: Cross multiply
   10,213.97x = 14,100.68 × 7,940.30
4. Step 4: Simplify right side
   10,213.97x = 111,963,578.75
5. Step 5: Solve for x
   x = 111,963,578.75/10,213.97
6. Step 6: Final answer
   x = 10,961.81