Finding the Fourth Proportional to 42,783.31, 59,042.91 and 23,920.45

Step by Step Solution

1. Step 1: Write the proportion equation
   42,783.31 : 59,042.91 = 23,920.45 : x
2. Step 2: Convert to fraction form
   42,783.31/59,042.91 = 23,920.45/x
3. Step 3: Cross multiply
   42,783.31x = 59,042.91 × 23,920.45
4. Step 4: Simplify right side
   42,783.31x = 1,412,332,976.51
5. Step 5: Solve for x
   x = 1,412,332,976.51/42,783.31
6. Step 6: Final answer
   x = 33,011.31