Finding the Fourth Proportional to 220,404.65, 304,153.38 and 124,911.72

Step by Step Solution

1. Step 1: Write the proportion equation
   220,404.65 : 304,153.38 = 124,911.72 : x
2. Step 2: Convert to fraction form
   220,404.65/304,153.38 = 124,911.72/x
3. Step 3: Cross multiply
   220,404.65x = 304,153.38 × 124,911.72
4. Step 4: Simplify right side
   220,404.65x = 37,992,321,839.61
5. Step 5: Solve for x
   x = 37,992,321,839.61/220,404.65
6. Step 6: Final answer
   x = 172,375.32