Finding the Fourth Proportional to 42,011.98, 57,976.71 and 23,149.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,011.98 : 57,976.71 = 23,149.12 : x
2. Step 2: Convert to fraction form
   42,011.98/57,976.71 = 23,149.12/x
3. Step 3: Cross multiply
   42,011.98x = 57,976.71 × 23,149.12
4. Step 4: Simplify right side
   42,011.98x = 1,342,109,817.00
5. Step 5: Solve for x
   x = 1,342,109,817.00/42,011.98
6. Step 6: Final answer
   x = 31,945.88