Finding the Fourth Proportional to 300,801.28, 451,179.37 and 87,570.83

Step by Step Solution

1. Step 1: Write the proportion equation
   300,801.28 : 451,179.37 = 87,570.83 : x
2. Step 2: Convert to fraction form
   300,801.28/451,179.37 = 87,570.83/x
3. Step 3: Cross multiply
   300,801.28x = 451,179.37 × 87,570.83
4. Step 4: Simplify right side
   300,801.28x = 39,510,151,471.92
5. Step 5: Solve for x
   x = 39,510,151,471.92/300,801.28
6. Step 6: Final answer
   x = 131,349.68