Finding the Fourth Proportional to 14,294.28, 21,441.78 and 3,906.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,294.28 : 21,441.78 = 3,906.12 : x
2. Step 2: Convert to fraction form
   14,294.28/21,441.78 = 3,906.12/x
3. Step 3: Cross multiply
   14,294.28x = 21,441.78 × 3,906.12
4. Step 4: Simplify right side
   14,294.28x = 83,754,165.69
5. Step 5: Solve for x
   x = 83,754,165.69/14,294.28
6. Step 6: Final answer
   x = 5,859.28