Finding the Fourth Proportional to 309,162.69, 463,745.05 and 109,488.90

Step by Step Solution

1. Step 1: Write the proportion equation
   309,162.69 : 463,745.05 = 109,488.90 : x
2. Step 2: Convert to fraction form
   309,162.69/463,745.05 = 109,488.90/x
3. Step 3: Cross multiply
   309,162.69x = 463,745.05 × 109,488.90
4. Step 4: Simplify right side
   309,162.69x = 50,774,935,404.95
5. Step 5: Solve for x
   x = 50,774,935,404.95/309,162.69
6. Step 6: Final answer
   x = 164,233.71