Finding the Fourth Proportional to 55,298.32, 82,932.80 and 20,238.24

Step by Step Solution

1. Step 1: Write the proportion equation
   55,298.32 : 82,932.80 = 20,238.24 : x
2. Step 2: Convert to fraction form
   55,298.32/82,932.80 = 20,238.24/x
3. Step 3: Cross multiply
   55,298.32x = 82,932.80 × 20,238.24
4. Step 4: Simplify right side
   55,298.32x = 1,678,413,910.27
5. Step 5: Solve for x
   x = 1,678,413,910.27/55,298.32
6. Step 6: Final answer
   x = 30,351.99