Finding the Fourth Proportional to 300,991.34, 451,482.42 and 73,289.10

Step by Step Solution

1. Step 1: Write the proportion equation
   300,991.34 : 451,482.42 = 73,289.10 : x
2. Step 2: Convert to fraction form
   300,991.34/451,482.42 = 73,289.10/x
3. Step 3: Cross multiply
   300,991.34x = 451,482.42 × 73,289.10
4. Step 4: Simplify right side
   300,991.34x = 33,088,740,227.62
5. Step 5: Solve for x
   x = 33,088,740,227.62/300,991.34
6. Step 6: Final answer
   x = 109,932.53