Finding the Fourth Proportional to 53,610.27, 80,414.91 and 13,629.35

Step by Step Solution

1. Step 1: Write the proportion equation
   53,610.27 : 80,414.91 = 13,629.35 : x
2. Step 2: Convert to fraction form
   53,610.27/80,414.91 = 13,629.35/x
3. Step 3: Cross multiply
   53,610.27x = 80,414.91 × 13,629.35
4. Step 4: Simplify right side
   53,610.27x = 1,096,002,551.53
5. Step 5: Solve for x
   x = 1,096,002,551.53/53,610.27
6. Step 6: Final answer
   x = 20,443.89