Finding the Fourth Proportional to 31,705.57, 43,753.57 and 18,276.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,705.57 : 43,753.57 = 18,276.73 : x
2. Step 2: Convert to fraction form
   31,705.57/43,753.57 = 18,276.73/x
3. Step 3: Cross multiply
   31,705.57x = 43,753.57 × 18,276.73
4. Step 4: Simplify right side
   31,705.57x = 799,672,185.43
5. Step 5: Solve for x
   x = 799,672,185.43/31,705.57
6. Step 6: Final answer
   x = 25,221.82