Finding the Fourth Proportional to 31,715, 43,650.18 and 27,187.92

Step by Step Solution

1. Step 1: Write the proportion equation
   31,715 : 43,650.18 = 27,187.92 : x
2. Step 2: Convert to fraction form
   31,715/43,650.18 = 27,187.92/x
3. Step 3: Cross multiply
   31,715x = 43,650.18 × 27,187.92
4. Step 4: Simplify right side
   31,715x = 1,186,757,601.83
5. Step 5: Solve for x
   x = 1,186,757,601.83/31,715
6. Step 6: Final answer
   x = 37,419.44