Finding the Fourth Proportional to 64,286.38, 88,694.56 and 41,642.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,286.38 : 88,694.56 = 41,642.72 : x
2. Step 2: Convert to fraction form
   64,286.38/88,694.56 = 41,642.72/x
3. Step 3: Cross multiply
   64,286.38x = 88,694.56 × 41,642.72
4. Step 4: Simplify right side
   64,286.38x = 3,693,483,167.70
5. Step 5: Solve for x
   x = 3,693,483,167.70/64,286.38
6. Step 6: Final answer
   x = 57,453.59