Finding the Fourth Proportional to 71,049.73, 106,535.41 and 28,919

Step by Step Solution

1. Step 1: Write the proportion equation
   71,049.73 : 106,535.41 = 28,919 : x
2. Step 2: Convert to fraction form
   71,049.73/106,535.41 = 28,919/x
3. Step 3: Cross multiply
   71,049.73x = 106,535.41 × 28,919
4. Step 4: Simplify right side
   71,049.73x = 3,080,897,521.79
5. Step 5: Solve for x
   x = 3,080,897,521.79/71,049.73
6. Step 6: Final answer
   x = 43,362.55