Finding the Fourth Proportional to 555,019.24, 765,926.50 and 300,370.48

Step by Step Solution

1. Step 1: Write the proportion equation
   555,019.24 : 765,926.50 = 300,370.48 : x
2. Step 2: Convert to fraction form
   555,019.24/765,926.50 = 300,370.48/x
3. Step 3: Cross multiply
   555,019.24x = 765,926.50 × 300,370.48
4. Step 4: Simplify right side
   555,019.24x = 230,061,710,449.72
5. Step 5: Solve for x
   x = 230,061,710,449.72/555,019.24
6. Step 6: Final answer
   x = 414,511.23