Finding the Fourth Proportional to 64,286.37, 88,694.57 and 41,642.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,286.37 : 88,694.57 = 41,642.72 : x
2. Step 2: Convert to fraction form
   64,286.37/88,694.57 = 41,642.72/x
3. Step 3: Cross multiply
   64,286.37x = 88,694.57 × 41,642.72
4. Step 4: Simplify right side
   64,286.37x = 3,693,483,137.27
5. Step 5: Solve for x
   x = 3,693,483,137.27/64,286.37
6. Step 6: Final answer
   x = 57,453.60