Finding the Fourth Proportional to 55,202.28, 82,804.79 and 20,141.94

Step by Step Solution

1. Step 1: Write the proportion equation
   55,202.28 : 82,804.79 = 20,141.94 : x
2. Step 2: Convert to fraction form
   55,202.28/82,804.79 = 20,141.94/x
3. Step 3: Cross multiply
   55,202.28x = 82,804.79 × 20,141.94
4. Step 4: Simplify right side
   55,202.28x = 1,667,849,111.89
5. Step 5: Solve for x
   x = 1,667,849,111.89/55,202.28
6. Step 6: Final answer
   x = 30,213.41