Finding the Fourth Proportional to 21,103.22, 31,643.14 and 8,632.00

Step by Step Solution

1. Step 1: Write the proportion equation
   21,103.22 : 31,643.14 = 8,632.00 : x
2. Step 2: Convert to fraction form
   21,103.22/31,643.14 = 8,632.00/x
3. Step 3: Cross multiply
   21,103.22x = 31,643.14 × 8,632.00
4. Step 4: Simplify right side
   21,103.22x = 273,143,383.10
5. Step 5: Solve for x
   x = 273,143,383.10/21,103.22
6. Step 6: Final answer
   x = 12,943.21