Finding the Fourth Proportional to 13,842.25, 19,103.70 and 8,178.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,842.25 : 19,103.70 = 8,178.83 : x
2. Step 2: Convert to fraction form
   13,842.25/19,103.70 = 8,178.83/x
3. Step 3: Cross multiply
   13,842.25x = 19,103.70 × 8,178.83
4. Step 4: Simplify right side
   13,842.25x = 156,245,819.15
5. Step 5: Solve for x
   x = 156,245,819.15/13,842.25
6. Step 6: Final answer
   x = 11,287.61