Finding the Fourth Proportional to 72,678.87, 109,052.73 and 30,568.19

Step by Step Solution

1. Step 1: Write the proportion equation
   72,678.87 : 109,052.73 = 30,568.19 : x
2. Step 2: Convert to fraction form
   72,678.87/109,052.73 = 30,568.19/x
3. Step 3: Cross multiply
   72,678.87x = 109,052.73 × 30,568.19
4. Step 4: Simplify right side
   72,678.87x = 3,333,544,025.40
5. Step 5: Solve for x
   x = 3,333,544,025.40/72,678.87
6. Step 6: Final answer
   x = 45,866.76