Finding the Fourth Proportional to 65,205.12, 89,982.72 and 35,397.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,205.12 : 89,982.72 = 35,397.12 : x
2. Step 2: Convert to fraction form
   65,205.12/89,982.72 = 35,397.12/x
3. Step 3: Cross multiply
   65,205.12x = 89,982.72 × 35,397.12
4. Step 4: Simplify right side
   65,205.12x = 3,185,129,137.77
5. Step 5: Solve for x
   x = 3,185,129,137.77/65,205.12
6. Step 6: Final answer
   x = 48,847.84