Finding the Fourth Proportional to 10,198.89, 14,074.49 and 5,722.65

Step by Step Solution

1. Step 1: Write the proportion equation
   10,198.89 : 14,074.49 = 5,722.65 : x
2. Step 2: Convert to fraction form
   10,198.89/14,074.49 = 5,722.65/x
3. Step 3: Cross multiply
   10,198.89x = 14,074.49 × 5,722.65
4. Step 4: Simplify right side
   10,198.89x = 80,543,394.51
5. Step 5: Solve for x
   x = 80,543,394.51/10,198.89
6. Step 6: Final answer
   x = 7,897.27