Finding the Fourth Proportional to 13,832.16, 19,086.72 and 7,863.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,832.16 : 19,086.72 = 7,863.84 : x
2. Step 2: Convert to fraction form
   13,832.16/19,086.72 = 7,863.84/x
3. Step 3: Cross multiply
   13,832.16x = 19,086.72 × 7,863.84
4. Step 4: Simplify right side
   13,832.16x = 150,094,912.20
5. Step 5: Solve for x
   x = 150,094,912.20/13,832.16
6. Step 6: Final answer
   x = 10,851.16