Finding the Fourth Proportional to 387,196.71, 580,571.63 and 150,262.47

Step by Step Solution

1. Step 1: Write the proportion equation
   387,196.71 : 580,571.63 = 150,262.47 : x
2. Step 2: Convert to fraction form
   387,196.71/580,571.63 = 150,262.47/x
3. Step 3: Cross multiply
   387,196.71x = 580,571.63 × 150,262.47
4. Step 4: Simplify right side
   387,196.71x = 87,238,126,384.41
5. Step 5: Solve for x
   x = 87,238,126,384.41/387,196.71
6. Step 6: Final answer
   x = 225,306.99