Finding the Fourth Proportional to 31,067.50, 42,898.43 and 25,325.85

Step by Step Solution

1. Step 1: Write the proportion equation
   31,067.50 : 42,898.43 = 25,325.85 : x
2. Step 2: Convert to fraction form
   31,067.50/42,898.43 = 25,325.85/x
3. Step 3: Cross multiply
   31,067.50x = 42,898.43 × 25,325.85
4. Step 4: Simplify right side
   31,067.50x = 1,086,439,076.79
5. Step 5: Solve for x
   x = 1,086,439,076.79/31,067.50
6. Step 6: Final answer
   x = 34,970.28