Finding the Fourth Proportional to 14,105.33, 21,156.88 and 7,078.17

Step by Step Solution

1. Step 1: Write the proportion equation
   14,105.33 : 21,156.88 = 7,078.17 : x
2. Step 2: Convert to fraction form
   14,105.33/21,156.88 = 7,078.17/x
3. Step 3: Cross multiply
   14,105.33x = 21,156.88 × 7,078.17
4. Step 4: Simplify right side
   14,105.33x = 149,751,993.31
5. Step 5: Solve for x
   x = 149,751,993.31/14,105.33
6. Step 6: Final answer
   x = 10,616.70