Finding the Fourth Proportional to 65,409.50, 98,149.69 and 50,647.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,409.50 : 98,149.69 = 50,647.25 : x
2. Step 2: Convert to fraction form
   65,409.50/98,149.69 = 50,647.25/x
3. Step 3: Cross multiply
   65,409.50x = 98,149.69 × 50,647.25
4. Step 4: Simplify right side
   65,409.50x = 4,971,011,886.85
5. Step 5: Solve for x
   x = 4,971,011,886.85/65,409.50
6. Step 6: Final answer
   x = 75,998.32