Finding the Fourth Proportional to 55,131.48, 82,724.55 and 21,850.81

Step by Step Solution

1. Step 1: Write the proportion equation
   55,131.48 : 82,724.55 = 21,850.81 : x
2. Step 2: Convert to fraction form
   55,131.48/82,724.55 = 21,850.81/x
3. Step 3: Cross multiply
   55,131.48x = 82,724.55 × 21,850.81
4. Step 4: Simplify right side
   55,131.48x = 1,807,598,609.73
5. Step 5: Solve for x
   x = 1,807,598,609.73/55,131.48
6. Step 6: Final answer
   x = 32,787.05