Finding the Fourth Proportional to 13,841.61, 19,101.42 and 7,874.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,841.61 : 19,101.42 = 7,874.43 : x
2. Step 2: Convert to fraction form
   13,841.61/19,101.42 = 7,874.43/x
3. Step 3: Cross multiply
   13,841.61x = 19,101.42 × 7,874.43
4. Step 4: Simplify right side
   13,841.61x = 150,412,794.69
5. Step 5: Solve for x
   x = 150,412,794.69/13,841.61
6. Step 6: Final answer
   x = 10,866.71