Finding the Fourth Proportional to 31,687.82, 43,733.88 and 18,256.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,687.82 : 43,733.88 = 18,256.52 : x
2. Step 2: Convert to fraction form
   31,687.82/43,733.88 = 18,256.52/x
3. Step 3: Cross multiply
   31,687.82x = 43,733.88 × 18,256.52
4. Step 4: Simplify right side
   31,687.82x = 798,428,454.90
5. Step 5: Solve for x
   x = 798,428,454.90/31,687.82
6. Step 6: Final answer
   x = 25,196.70