Finding the Fourth Proportional to 215,052.57, 322,591.41 and 65,297.75

Step by Step Solution

1. Step 1: Write the proportion equation
   215,052.57 : 322,591.41 = 65,297.75 : x
2. Step 2: Convert to fraction form
   215,052.57/322,591.41 = 65,297.75/x
3. Step 3: Cross multiply
   215,052.57x = 322,591.41 × 65,297.75
4. Step 4: Simplify right side
   215,052.57x = 21,064,491,629.37
5. Step 5: Solve for x
   x = 21,064,491,629.37/215,052.57
6. Step 6: Final answer
   x = 97,950.43