Finding the Fourth Proportional to 42,007.68, 57,970.80 and 23,144.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,007.68 : 57,970.80 = 23,144.76 : x
2. Step 2: Convert to fraction form
   42,007.68/57,970.80 = 23,144.76/x
3. Step 3: Cross multiply
   42,007.68x = 57,970.80 × 23,144.76
4. Step 4: Simplify right side
   42,007.68x = 1,341,720,253.01
5. Step 5: Solve for x
   x = 1,341,720,253.01/42,007.68
6. Step 6: Final answer
   x = 31,939.88