Finding the Fourth Proportional to 14,379.57, 19,843.97 and 7,919.93

Step by Step Solution

1. Step 1: Write the proportion equation
   14,379.57 : 19,843.97 = 7,919.93 : x
2. Step 2: Convert to fraction form
   14,379.57/19,843.97 = 7,919.93/x
3. Step 3: Cross multiply
   14,379.57x = 19,843.97 × 7,919.93
4. Step 4: Simplify right side
   14,379.57x = 157,162,863.33
5. Step 5: Solve for x
   x = 157,162,863.33/14,379.57
6. Step 6: Final answer
   x = 10,929.59