Finding the Fourth Proportional to 31,730.34, 43,787.82 and 18,301.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,730.34 : 43,787.82 = 18,301.38 : x
2. Step 2: Convert to fraction form
   31,730.34/43,787.82 = 18,301.38/x
3. Step 3: Cross multiply
   31,730.34x = 43,787.82 × 18,301.38
4. Step 4: Simplify right side
   31,730.34x = 801,377,533.19
5. Step 5: Solve for x
   x = 801,377,533.19/31,730.34
6. Step 6: Final answer
   x = 25,255.88