Finding the Fourth Proportional to 55,429.34, 83,141.48 and 20,366.42

Step by Step Solution

1. Step 1: Write the proportion equation
   55,429.34 : 83,141.48 = 20,366.42 : x
2. Step 2: Convert to fraction form
   55,429.34/83,141.48 = 20,366.42/x
3. Step 3: Cross multiply
   55,429.34x = 83,141.48 × 20,366.42
4. Step 4: Simplify right side
   55,429.34x = 1,693,294,301.10
5. Step 5: Solve for x
   x = 1,693,294,301.10/55,429.34
6. Step 6: Final answer
   x = 30,548.70