Finding the Fourth Proportional to 555,105.72, 766,051.50 and 300,462.36

Step by Step Solution

1. Step 1: Write the proportion equation
   555,105.72 : 766,051.50 = 300,462.36 : x
2. Step 2: Convert to fraction form
   555,105.72/766,051.50 = 300,462.36/x
3. Step 3: Cross multiply
   555,105.72x = 766,051.50 × 300,462.36
4. Step 4: Simplify right side
   555,105.72x = 230,169,641,571.54
5. Step 5: Solve for x
   x = 230,169,641,571.54/555,105.72
6. Step 6: Final answer
   x = 414,641.09