Finding the Fourth Proportional to 10,119.98, 13,965.54 and 5,643.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,119.98 : 13,965.54 = 5,643.73 : x
2. Step 2: Convert to fraction form
   10,119.98/13,965.54 = 5,643.73/x
3. Step 3: Cross multiply
   10,119.98x = 13,965.54 × 5,643.73
4. Step 4: Simplify right side
   10,119.98x = 78,817,759.05
5. Step 5: Solve for x
   x = 78,817,759.05/10,119.98
6. Step 6: Final answer
   x = 7,788.33