Finding the Fourth Proportional to 42,142.48, 63,076.56 and 31,044.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,142.48 : 63,076.56 = 31,044.80 : x
2. Step 2: Convert to fraction form
   42,142.48/63,076.56 = 31,044.80/x
3. Step 3: Cross multiply
   42,142.48x = 63,076.56 × 31,044.80
4. Step 4: Simplify right side
   42,142.48x = 1,958,199,189.89
5. Step 5: Solve for x
   x = 1,958,199,189.89/42,142.48
6. Step 6: Final answer
   x = 46,466.16