Finding the Fourth Proportional to 42,007.12, 57,971.16 and 23,144.92

Step by Step Solution

1. Step 1: Write the proportion equation
   42,007.12 : 57,971.16 = 23,144.92 : x
2. Step 2: Convert to fraction form
   42,007.12/57,971.16 = 23,144.92/x
3. Step 3: Cross multiply
   42,007.12x = 57,971.16 × 23,144.92
4. Step 4: Simplify right side
   42,007.12x = 1,341,737,860.51
5. Step 5: Solve for x
   x = 1,341,737,860.51/42,007.12
6. Step 6: Final answer
   x = 31,940.72