Finding the Fourth Proportional to 410,507.47, 566,891.59 and 388,142.96

Step by Step Solution

1. Step 1: Write the proportion equation
   410,507.47 : 566,891.59 = 388,142.96 : x
2. Step 2: Convert to fraction form
   410,507.47/566,891.59 = 388,142.96/x
3. Step 3: Cross multiply
   410,507.47x = 566,891.59 × 388,142.96
4. Step 4: Simplify right side
   410,507.47x = 220,034,980,188.58
5. Step 5: Solve for x
   x = 220,034,980,188.58/410,507.47
6. Step 6: Final answer
   x = 536,007.25