Finding the Fourth Proportional to 13,832.72, 19,086.84 and 13,132.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,832.72 : 19,086.84 = 13,132.16 : x
2. Step 2: Convert to fraction form
   13,832.72/19,086.84 = 13,132.16/x
3. Step 3: Cross multiply
   13,832.72x = 19,086.84 × 13,132.16
4. Step 4: Simplify right side
   13,832.72x = 250,651,436.77
5. Step 5: Solve for x
   x = 250,651,436.77/13,832.72
6. Step 6: Final answer
   x = 18,120.18