Finding the Fourth Proportional to 42,012.63, 57,974.81 and 23,149.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,012.63 : 57,974.81 = 23,149.89 : x
2. Step 2: Convert to fraction form
   42,012.63/57,974.81 = 23,149.89/x
3. Step 3: Cross multiply
   42,012.63x = 57,974.81 × 23,149.89
4. Step 4: Simplify right side
   42,012.63x = 1,342,110,358.52
5. Step 5: Solve for x
   x = 1,342,110,358.52/42,012.63
6. Step 6: Final answer
   x = 31,945.40