Finding the Fourth Proportional to 85,916.10, 128,906.55 and 41,582.10

Step by Step Solution

1. Step 1: Write the proportion equation
   85,916.10 : 128,906.55 = 41,582.10 : x
2. Step 2: Convert to fraction form
   85,916.10/128,906.55 = 41,582.10/x
3. Step 3: Cross multiply
   85,916.10x = 128,906.55 × 41,582.10
4. Step 4: Simplify right side
   85,916.10x = 5,360,205,052.76
5. Step 5: Solve for x
   x = 5,360,205,052.76/85,916.10
6. Step 6: Final answer
   x = 62,388.83