Finding the Fourth Proportional to 359,078.49, 538,614.50 and 137,462.49

Step by Step Solution

1. Step 1: Write the proportion equation
   359,078.49 : 538,614.50 = 137,462.49 : x
2. Step 2: Convert to fraction form
   359,078.49/538,614.50 = 137,462.49/x
3. Step 3: Cross multiply
   359,078.49x = 538,614.50 × 137,462.49
4. Step 4: Simplify right side
   359,078.49x = 74,039,289,632.79
5. Step 5: Solve for x
   x = 74,039,289,632.79/359,078.49
6. Step 6: Final answer
   x = 206,192.49