Finding the Fourth Proportional to 31,616.27, 43,636.57 and 20,300.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,616.27 : 43,636.57 = 20,300.14 : x
2. Step 2: Convert to fraction form
   31,616.27/43,636.57 = 20,300.14/x
3. Step 3: Cross multiply
   31,616.27x = 43,636.57 × 20,300.14
4. Step 4: Simplify right side
   31,616.27x = 885,828,720.83
5. Step 5: Solve for x
   x = 885,828,720.83/31,616.27
6. Step 6: Final answer
   x = 28,018.12