Finding the Fourth Proportional to 42,010.92, 57,972.78 and 23,146.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,010.92 : 57,972.78 = 23,146.56 : x
2. Step 2: Convert to fraction form
   42,010.92/57,972.78 = 23,146.56/x
3. Step 3: Cross multiply
   42,010.92x = 57,972.78 × 23,146.56
4. Step 4: Simplify right side
   42,010.92x = 1,341,870,430.64
5. Step 5: Solve for x
   x = 1,341,870,430.64/42,010.92
6. Step 6: Final answer
   x = 31,940.99