Finding the Fourth Proportional to 65,341.98, 90,222.72 and 50,210.80

Step by Step Solution

1. Step 1: Write the proportion equation
   65,341.98 : 90,222.72 = 50,210.80 : x
2. Step 2: Convert to fraction form
   65,341.98/90,222.72 = 50,210.80/x
3. Step 3: Cross multiply
   65,341.98x = 90,222.72 × 50,210.80
4. Step 4: Simplify right side
   65,341.98x = 4,530,154,949.38
5. Step 5: Solve for x
   x = 4,530,154,949.38/65,341.98
6. Step 6: Final answer
   x = 69,329.93