Finding the Fourth Proportional to 13,835.58, 19,092.88 and 7,867.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,835.58 : 19,092.88 = 7,867.12 : x
2. Step 2: Convert to fraction form
   13,835.58/19,092.88 = 7,867.12/x
3. Step 3: Cross multiply
   13,835.58x = 19,092.88 × 7,867.12
4. Step 4: Simplify right side
   13,835.58x = 150,205,978.11
5. Step 5: Solve for x
   x = 150,205,978.11/13,835.58
6. Step 6: Final answer
   x = 10,856.50