Finding the Fourth Proportional to 42,957.34, 59,146.41 and 39,020.74

Step by Step Solution

1. Step 1: Write the proportion equation
   42,957.34 : 59,146.41 = 39,020.74 : x
2. Step 2: Convert to fraction form
   42,957.34/59,146.41 = 39,020.74/x
3. Step 3: Cross multiply
   42,957.34x = 59,146.41 × 39,020.74
4. Step 4: Simplify right side
   42,957.34x = 2,307,936,686.54
5. Step 5: Solve for x
   x = 2,307,936,686.54/42,957.34
6. Step 6: Final answer
   x = 53,726.25