Finding the Fourth Proportional to 21,104.16, 29,132.71 and 13,150.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,104.16 : 29,132.71 = 13,150.32 : x
2. Step 2: Convert to fraction form
   21,104.16/29,132.71 = 13,150.32/x
3. Step 3: Cross multiply
   21,104.16x = 29,132.71 × 13,150.32
4. Step 4: Simplify right side
   21,104.16x = 383,104,458.97
5. Step 5: Solve for x
   x = 383,104,458.97/21,104.16
6. Step 6: Final answer
   x = 18,153.03