Finding the Fourth Proportional to 41,979.28, 57,931.29 and 23,116.42

Step by Step Solution

1. Step 1: Write the proportion equation
   41,979.28 : 57,931.29 = 23,116.42 : x
2. Step 2: Convert to fraction form
   41,979.28/57,931.29 = 23,116.42/x
3. Step 3: Cross multiply
   41,979.28x = 57,931.29 × 23,116.42
4. Step 4: Simplify right side
   41,979.28x = 1,339,164,030.78
5. Step 5: Solve for x
   x = 1,339,164,030.78/41,979.28
6. Step 6: Final answer
   x = 31,900.60