Finding the Fourth Proportional to 85,956.10, 128,966.55 and 41,622.10

Step by Step Solution

1. Step 1: Write the proportion equation
   85,956.10 : 128,966.55 = 41,622.10 : x
2. Step 2: Convert to fraction form
   85,956.10/128,966.55 = 41,622.10/x
3. Step 3: Cross multiply
   85,956.10x = 128,966.55 × 41,622.10
4. Step 4: Simplify right side
   85,956.10x = 5,367,858,640.76
5. Step 5: Solve for x
   x = 5,367,858,640.76/85,956.10
6. Step 6: Final answer
   x = 62,448.84