Finding the Fourth Proportional to 42,143.28, 58,157.94 and 23,022.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,143.28 : 58,157.94 = 23,022.48 : x
2. Step 2: Convert to fraction form
   42,143.28/58,157.94 = 23,022.48/x
3. Step 3: Cross multiply
   42,143.28x = 58,157.94 × 23,022.48
4. Step 4: Simplify right side
   42,143.28x = 1,338,940,010.49
5. Step 5: Solve for x
   x = 1,338,940,010.49/42,143.28
6. Step 6: Final answer
   x = 31,771.14