Finding the Fourth Proportional to 42,007.23, 57,970.15 and 23,144.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,007.23 : 57,970.15 = 23,144.36 : x
2. Step 2: Convert to fraction form
   42,007.23/57,970.15 = 23,144.36/x
3. Step 3: Cross multiply
   42,007.23x = 57,970.15 × 23,144.36
4. Step 4: Simplify right side
   42,007.23x = 1,341,681,673.14
5. Step 5: Solve for x
   x = 1,341,681,673.14/42,007.23
6. Step 6: Final answer
   x = 31,939.30