Finding the Fourth Proportional to 55,162.56, 82,785.42 and 40,409.22

Step by Step Solution

1. Step 1: Write the proportion equation
   55,162.56 : 82,785.42 = 40,409.22 : x
2. Step 2: Convert to fraction form
   55,162.56/82,785.42 = 40,409.22/x
3. Step 3: Cross multiply
   55,162.56x = 82,785.42 × 40,409.22
4. Step 4: Simplify right side
   55,162.56x = 3,345,294,249.57
5. Step 5: Solve for x
   x = 3,345,294,249.57/55,162.56
6. Step 6: Final answer
   x = 60,644.29