Finding the Fourth Proportional to 31,258.49, 43,128.18 and 17,824.85

Step by Step Solution

1. Step 1: Write the proportion equation
   31,258.49 : 43,128.18 = 17,824.85 : x
2. Step 2: Convert to fraction form
   31,258.49/43,128.18 = 17,824.85/x
3. Step 3: Cross multiply
   31,258.49x = 43,128.18 × 17,824.85
4. Step 4: Simplify right side
   31,258.49x = 768,753,123.63
5. Step 5: Solve for x
   x = 768,753,123.63/31,258.49
6. Step 6: Final answer
   x = 24,593.42