Finding the Fourth Proportional to 42,006.71, 57,969.23 and 23,143.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,006.71 : 57,969.23 = 23,143.84 : x
2. Step 2: Convert to fraction form
   42,006.71/57,969.23 = 23,143.84/x
3. Step 3: Cross multiply
   42,006.71x = 57,969.23 × 23,143.84
4. Step 4: Simplify right side
   42,006.71x = 1,341,630,178.48
5. Step 5: Solve for x
   x = 1,341,630,178.48/42,006.71
6. Step 6: Final answer
   x = 31,938.47