Finding the Fourth Proportional to 13,843.30, 19,104.78 and 7,876.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,843.30 : 19,104.78 = 7,876.88 : x
2. Step 2: Convert to fraction form
   13,843.30/19,104.78 = 7,876.88/x
3. Step 3: Cross multiply
   13,843.30x = 19,104.78 × 7,876.88
4. Step 4: Simplify right side
   13,843.30x = 150,486,059.49
5. Step 5: Solve for x
   x = 150,486,059.49/13,843.30
6. Step 6: Final answer
   x = 10,870.68