Finding the Fourth Proportional to 309,638.56, 464,399.52 and 120,098.56

Step by Step Solution

1. Step 1: Write the proportion equation
   309,638.56 : 464,399.52 = 120,098.56 : x
2. Step 2: Convert to fraction form
   309,638.56/464,399.52 = 120,098.56/x
3. Step 3: Cross multiply
   309,638.56x = 464,399.52 × 120,098.56
4. Step 4: Simplify right side
   309,638.56x = 55,773,713,616.69
5. Step 5: Solve for x
   x = 55,773,713,616.69/309,638.56
6. Step 6: Final answer
   x = 180,125.22