Finding the Fourth Proportional to 110,728.35, 166,086.72 and 31,839.48

Step by Step Solution

1. Step 1: Write the proportion equation
   110,728.35 : 166,086.72 = 31,839.48 : x
2. Step 2: Convert to fraction form
   110,728.35/166,086.72 = 31,839.48/x
3. Step 3: Cross multiply
   110,728.35x = 166,086.72 × 31,839.48
4. Step 4: Simplify right side
   110,728.35x = 5,288,114,799.71
5. Step 5: Solve for x
   x = 5,288,114,799.71/110,728.35
6. Step 6: Final answer
   x = 47,757.55