Finding the Fourth Proportional to 65,116.50, 89,860.81 and 35,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,116.50 : 89,860.81 = 35,308.50 : x
2. Step 2: Convert to fraction form
   65,116.50/89,860.81 = 35,308.50/x
3. Step 3: Cross multiply
   65,116.50x = 89,860.81 × 35,308.50
4. Step 4: Simplify right side
   65,116.50x = 3,172,850,409.89
5. Step 5: Solve for x
   x = 3,172,850,409.89/65,116.50
6. Step 6: Final answer
   x = 48,725.75