Finding the Fourth Proportional to 85,495.52, 128,269.20 and 41,109.68

Step by Step Solution

1. Step 1: Write the proportion equation
   85,495.52 : 128,269.20 = 41,109.68 : x
2. Step 2: Convert to fraction form
   85,495.52/128,269.20 = 41,109.68/x
3. Step 3: Cross multiply
   85,495.52x = 128,269.20 × 41,109.68
4. Step 4: Simplify right side
   85,495.52x = 5,273,105,765.86
5. Step 5: Solve for x
   x = 5,273,105,765.86/85,495.52
6. Step 6: Final answer
   x = 61,676.98