Finding the Fourth Proportional to 42,012.42, 57,974.85 and 23,148.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42,012.42 : 57,974.85 = 23,148.06 : x
2. Step 2: Convert to fraction form
   42,012.42/57,974.85 = 23,148.06/x
3. Step 3: Cross multiply
   42,012.42x = 57,974.85 × 23,148.06
4. Step 4: Simplify right side
   42,012.42x = 1,342,005,306.29
5. Step 5: Solve for x
   x = 1,342,005,306.29/42,012.42
6. Step 6: Final answer
   x = 31,943.06