Finding the Fourth Proportional to 42,005.94, 57,968.34 and 23,143.02

Step by Step Solution

1. Step 1: Write the proportion equation
   42,005.94 : 57,968.34 = 23,143.02 : x
2. Step 2: Convert to fraction form
   42,005.94/57,968.34 = 23,143.02/x
3. Step 3: Cross multiply
   42,005.94x = 57,968.34 × 23,143.02
4. Step 4: Simplify right side
   42,005.94x = 1,341,562,451.99
5. Step 5: Solve for x
   x = 1,341,562,451.99/42,005.94
6. Step 6: Final answer
   x = 31,937.45