Finding the Fourth Proportional to 31,132.50, 42,962.85 and 19,954.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,132.50 : 42,962.85 = 19,954.50 : x
2. Step 2: Convert to fraction form
   31,132.50/42,962.85 = 19,954.50/x
3. Step 3: Cross multiply
   31,132.50x = 42,962.85 × 19,954.50
4. Step 4: Simplify right side
   31,132.50x = 857,302,190.33
5. Step 5: Solve for x
   x = 857,302,190.33/31,132.50
6. Step 6: Final answer
   x = 27,537.21