Finding the Fourth Proportional to 42,007.25, 57,970.01 and 23,144.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,007.25 : 57,970.01 = 23,144.78 : x
2. Step 2: Convert to fraction form
   42,007.25/57,970.01 = 23,144.78/x
3. Step 3: Cross multiply
   42,007.25x = 57,970.01 × 23,144.78
4. Step 4: Simplify right side
   42,007.25x = 1,341,703,128.05
5. Step 5: Solve for x
   x = 1,341,703,128.05/42,007.25
6. Step 6: Final answer
   x = 31,939.80