Finding the Fourth Proportional to 410,564.69, 615,864.05 and 140,878.24

Step by Step Solution

1. Step 1: Write the proportion equation
   410,564.69 : 615,864.05 = 140,878.24 : x
2. Step 2: Convert to fraction form
   410,564.69/615,864.05 = 140,878.24/x
3. Step 3: Cross multiply
   410,564.69x = 615,864.05 × 140,878.24
4. Step 4: Simplify right side
   410,564.69x = 86,761,843,443.27
5. Step 5: Solve for x
   x = 86,761,843,443.27/410,564.69
6. Step 6: Final answer
   x = 211,323.20