Finding the Fourth Proportional to 10,119.58, 13,963.37 and 5,643.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,119.58 : 13,963.37 = 5,643.22 : x
2. Step 2: Convert to fraction form
   10,119.58/13,963.37 = 5,643.22/x
3. Step 3: Cross multiply
   10,119.58x = 13,963.37 × 5,643.22
4. Step 4: Simplify right side
   10,119.58x = 78,798,363.65
5. Step 5: Solve for x
   x = 78,798,363.65/10,119.58
6. Step 6: Final answer
   x = 7,786.72