Finding the Fourth Proportional to 110,697.17, 166,046.72 and 31,811.40

Step by Step Solution

1. Step 1: Write the proportion equation
   110,697.17 : 166,046.72 = 31,811.40 : x
2. Step 2: Convert to fraction form
   110,697.17/166,046.72 = 31,811.40/x
3. Step 3: Cross multiply
   110,697.17x = 166,046.72 × 31,811.40
4. Step 4: Simplify right side
   110,697.17x = 5,282,178,469.55
5. Step 5: Solve for x
   x = 5,282,178,469.55/110,697.17
6. Step 6: Final answer
   x = 47,717.38