Finding the Fourth Proportional to 150,321.16, 225,507.72 and 50,491

Step by Step Solution

1. Step 1: Write the proportion equation
   150,321.16 : 225,507.72 = 50,491 : x
2. Step 2: Convert to fraction form
   150,321.16/225,507.72 = 50,491/x
3. Step 3: Cross multiply
   150,321.16x = 225,507.72 × 50,491
4. Step 4: Simplify right side
   150,321.16x = 11,386,110,290.52
5. Step 5: Solve for x
   x = 11,386,110,290.52/150,321.16
6. Step 6: Final answer
   x = 75,745.23