Finding the Fourth Proportional to 55,300.54, 82,959.18 and 20,231.86

Step by Step Solution

1. Step 1: Write the proportion equation
   55,300.54 : 82,959.18 = 20,231.86 : x
2. Step 2: Convert to fraction form
   55,300.54/82,959.18 = 20,231.86/x
3. Step 3: Cross multiply
   55,300.54x = 82,959.18 × 20,231.86
4. Step 4: Simplify right side
   55,300.54x = 1,678,418,515.47
5. Step 5: Solve for x
   x = 1,678,418,515.47/55,300.54
6. Step 6: Final answer
   x = 30,350.85