Finding the Fourth Proportional to 47,171.54, 65,105.08 and 28,309.88

Step by Step Solution

1. Step 1: Write the proportion equation
   47,171.54 : 65,105.08 = 28,309.88 : x
2. Step 2: Convert to fraction form
   47,171.54/65,105.08 = 28,309.88/x
3. Step 3: Cross multiply
   47,171.54x = 65,105.08 × 28,309.88
4. Step 4: Simplify right side
   47,171.54x = 1,843,116,605.89
5. Step 5: Solve for x
   x = 1,843,116,605.89/47,171.54
6. Step 6: Final answer
   x = 39,072.64