Finding the Fourth Proportional to 42,006.09, 57,969.47 and 23,143.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42,006.09 : 57,969.47 = 23,143.22 : x
2. Step 2: Convert to fraction form
   42,006.09/57,969.47 = 23,143.22/x
3. Step 3: Cross multiply
   42,006.09x = 57,969.47 × 23,143.22
4. Step 4: Simplify right side
   42,006.09x = 1,341,600,182.89
5. Step 5: Solve for x
   x = 1,341,600,182.89/42,006.09
6. Step 6: Final answer
   x = 31,938.23