Finding the Fourth Proportional to 55,280.10, 82,916.28 and 13,727.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,280.10 : 82,916.28 = 13,727.10 : x
2. Step 2: Convert to fraction form
   55,280.10/82,916.28 = 13,727.10/x
3. Step 3: Cross multiply
   55,280.10x = 82,916.28 × 13,727.10
4. Step 4: Simplify right side
   55,280.10x = 1,138,200,067.19
5. Step 5: Solve for x
   x = 1,138,200,067.19/55,280.10
6. Step 6: Final answer
   x = 20,589.69