Finding the Fourth Proportional to 50,748.01, 76,143.89 and 21,171.67

Step by Step Solution

1. Step 1: Write the proportion equation
   50,748.01 : 76,143.89 = 21,171.67 : x
2. Step 2: Convert to fraction form
   50,748.01/76,143.89 = 21,171.67/x
3. Step 3: Cross multiply
   50,748.01x = 76,143.89 × 21,171.67
4. Step 4: Simplify right side
   50,748.01x = 1,612,093,311.60
5. Step 5: Solve for x
   x = 1,612,093,311.60/50,748.01
6. Step 6: Final answer
   x = 31,766.63