Finding the Fourth Proportional to 47,137.33, 65,061.77 and 31,215.97

Step by Step Solution

1. Step 1: Write the proportion equation
   47,137.33 : 65,061.77 = 31,215.97 : x
2. Step 2: Convert to fraction form
   47,137.33/65,061.77 = 31,215.97/x
3. Step 3: Cross multiply
   47,137.33x = 65,061.77 × 31,215.97
4. Step 4: Simplify right side
   47,137.33x = 2,030,965,819.74
5. Step 5: Solve for x
   x = 2,030,965,819.74/47,137.33
6. Step 6: Final answer
   x = 43,086.15