Finding the Fourth Proportional to 442,164.89, 610,014.33 and 272,103.77

Step by Step Solution

1. Step 1: Write the proportion equation
   442,164.89 : 610,014.33 = 272,103.77 : x
2. Step 2: Convert to fraction form
   442,164.89/610,014.33 = 272,103.77/x
3. Step 3: Cross multiply
   442,164.89x = 610,014.33 × 272,103.77
4. Step 4: Simplify right side
   442,164.89x = 165,987,200,472.06
5. Step 5: Solve for x
   x = 165,987,200,472.06/442,164.89
6. Step 6: Final answer
   x = 375,396.61