Finding the Fourth Proportional to 73,057.89, 109,597.14 and 28,660.56

Step by Step Solution

1. Step 1: Write the proportion equation
   73,057.89 : 109,597.14 = 28,660.56 : x
2. Step 2: Convert to fraction form
   73,057.89/109,597.14 = 28,660.56/x
3. Step 3: Cross multiply
   73,057.89x = 109,597.14 × 28,660.56
4. Step 4: Simplify right side
   73,057.89x = 3,141,115,406.80
5. Step 5: Solve for x
   x = 3,141,115,406.80/73,057.89
6. Step 6: Final answer
   x = 42,994.88