Finding the Fourth Proportional to 13,835.43, 19,092.81 and 7,867.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,835.43 : 19,092.81 = 7,867.10 : x
2. Step 2: Convert to fraction form
   13,835.43/19,092.81 = 7,867.10/x
3. Step 3: Cross multiply
   13,835.43x = 19,092.81 × 7,867.10
4. Step 4: Simplify right side
   13,835.43x = 150,205,078.53
5. Step 5: Solve for x
   x = 150,205,078.53/13,835.43
6. Step 6: Final answer
   x = 10,856.55