Finding the Fourth Proportional to 85,620.33, 128,375.82 and 41,158.62

Step by Step Solution

1. Step 1: Write the proportion equation
   85,620.33 : 128,375.82 = 41,158.62 : x
2. Step 2: Convert to fraction form
   85,620.33/128,375.82 = 41,158.62/x
3. Step 3: Cross multiply
   85,620.33x = 128,375.82 × 41,158.62
4. Step 4: Simplify right side
   85,620.33x = 5,283,771,592.57
5. Step 5: Solve for x
   x = 5,283,771,592.57/85,620.33
6. Step 6: Final answer
   x = 61,711.65