Finding the Fourth Proportional to 55,857.35, 83,759.67 and 20,293.59

Step by Step Solution

1. Step 1: Write the proportion equation
   55,857.35 : 83,759.67 = 20,293.59 : x
2. Step 2: Convert to fraction form
   55,857.35/83,759.67 = 20,293.59/x
3. Step 3: Cross multiply
   55,857.35x = 83,759.67 × 20,293.59
4. Step 4: Simplify right side
   55,857.35x = 1,699,784,401.52
5. Step 5: Solve for x
   x = 1,699,784,401.52/55,857.35
6. Step 6: Final answer
   x = 30,430.81