Finding the Fourth Proportional to 14,057.97, 21,091.28 and 5,294.18

Step by Step Solution

1. Step 1: Write the proportion equation
   14,057.97 : 21,091.28 = 5,294.18 : x
2. Step 2: Convert to fraction form
   14,057.97/21,091.28 = 5,294.18/x
3. Step 3: Cross multiply
   14,057.97x = 21,091.28 × 5,294.18
4. Step 4: Simplify right side
   14,057.97x = 111,660,900.82
5. Step 5: Solve for x
   x = 111,660,900.82/14,057.97
6. Step 6: Final answer
   x = 7,942.89