Finding the Fourth Proportional to 47,171.34, 65,123.31 and 31,277.28

Step by Step Solution

1. Step 1: Write the proportion equation
   47,171.34 : 65,123.31 = 31,277.28 : x
2. Step 2: Convert to fraction form
   47,171.34/65,123.31 = 31,277.28/x
3. Step 3: Cross multiply
   47,171.34x = 65,123.31 × 31,277.28
4. Step 4: Simplify right side
   47,171.34x = 2,036,880,001.40
5. Step 5: Solve for x
   x = 2,036,880,001.40/47,171.34
6. Step 6: Final answer
   x = 43,180.46