Finding the Fourth Proportional to 13,832.88, 19,088.60 and 7,863.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,832.88 : 19,088.60 = 7,863.72 : x
2. Step 2: Convert to fraction form
   13,832.88/19,088.60 = 7,863.72/x
3. Step 3: Cross multiply
   13,832.88x = 19,088.60 × 7,863.72
4. Step 4: Simplify right side
   13,832.88x = 150,107,405.59
5. Step 5: Solve for x
   x = 150,107,405.59/13,832.88
6. Step 6: Final answer
   x = 10,851.49