Finding the Fourth Proportional to 71,049.98, 106,535.79 and 28,919.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,049.98 : 106,535.79 = 28,919.25 : x
2. Step 2: Convert to fraction form
   71,049.98/106,535.79 = 28,919.25/x
3. Step 3: Cross multiply
   71,049.98x = 106,535.79 × 28,919.25
4. Step 4: Simplify right side
   71,049.98x = 3,080,935,144.96
5. Step 5: Solve for x
   x = 3,080,935,144.96/71,049.98
6. Step 6: Final answer
   x = 43,362.93