Finding the Fourth Proportional to 13,843.15, 19,103.46 and 7,874.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,843.15 : 19,103.46 = 7,874.80 : x
2. Step 2: Convert to fraction form
   13,843.15/19,103.46 = 7,874.80/x
3. Step 3: Cross multiply
   13,843.15x = 19,103.46 × 7,874.80
4. Step 4: Simplify right side
   13,843.15x = 150,435,926.81
5. Step 5: Solve for x
   x = 150,435,926.81/13,843.15
6. Step 6: Final answer
   x = 10,867.17