Finding the Fourth Proportional to 555,061.43, 765,984.75 and 300,412.62

Step by Step Solution

1. Step 1: Write the proportion equation
   555,061.43 : 765,984.75 = 300,412.62 : x
2. Step 2: Convert to fraction form
   555,061.43/765,984.75 = 300,412.62/x
3. Step 3: Cross multiply
   555,061.43x = 765,984.75 × 300,412.62
4. Step 4: Simplify right side
   555,061.43x = 230,111,485,627.55
5. Step 5: Solve for x
   x = 230,111,485,627.55/555,061.43
6. Step 6: Final answer
   x = 414,569.41