Finding the Fourth Proportional to 55,433.34, 83,147.48 and 20,370.42

Step by Step Solution

1. Step 1: Write the proportion equation
   55,433.34 : 83,147.48 = 20,370.42 : x
2. Step 2: Convert to fraction form
   55,433.34/83,147.48 = 20,370.42/x
3. Step 3: Cross multiply
   55,433.34x = 83,147.48 × 20,370.42
4. Step 4: Simplify right side
   55,433.34x = 1,693,749,089.54
5. Step 5: Solve for x
   x = 1,693,749,089.54/55,433.34
6. Step 6: Final answer
   x = 30,554.70