Finding the Fourth Proportional to 31,154.39, 42,991.44 and 17,725.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,154.39 : 42,991.44 = 17,725.37 : x
2. Step 2: Convert to fraction form
   31,154.39/42,991.44 = 17,725.37/x
3. Step 3: Cross multiply
   31,154.39x = 42,991.44 × 17,725.37
4. Step 4: Simplify right side
   31,154.39x = 762,038,965.88
5. Step 5: Solve for x
   x = 762,038,965.88/31,154.39
6. Step 6: Final answer
   x = 24,460.09