Finding the Fourth Proportional to 330,998.48, 496,196.72 and 120,588.56

Step by Step Solution

1. Step 1: Write the proportion equation
   330,998.48 : 496,196.72 = 120,588.56 : x
2. Step 2: Convert to fraction form
   330,998.48/496,196.72 = 120,588.56/x
3. Step 3: Cross multiply
   330,998.48x = 496,196.72 × 120,588.56
4. Step 4: Simplify right side
   330,998.48x = 59,835,647,941.52
5. Step 5: Solve for x
   x = 59,835,647,941.52/330,998.48
6. Step 6: Final answer
   x = 180,773.18