Finding the Fourth Proportional to 55,734.69, 83,608.37 and 20,212.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,734.69 : 83,608.37 = 20,212.75 : x
2. Step 2: Convert to fraction form
   55,734.69/83,608.37 = 20,212.75/x
3. Step 3: Cross multiply
   55,734.69x = 83,608.37 × 20,212.75
4. Step 4: Simplify right side
   55,734.69x = 1,689,955,080.72
5. Step 5: Solve for x
   x = 1,689,955,080.72/55,734.69
6. Step 6: Final answer
   x = 30,321.42