Finding the Fourth Proportional to 65,212.50, 89,993.25 and 35,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,212.50 : 89,993.25 = 35,404.50 : x
2. Step 2: Convert to fraction form
   65,212.50/89,993.25 = 35,404.50/x
3. Step 3: Cross multiply
   65,212.50x = 89,993.25 × 35,404.50
4. Step 4: Simplify right side
   65,212.50x = 3,186,166,019.63
5. Step 5: Solve for x
   x = 3,186,166,019.63/65,212.50
6. Step 6: Final answer
   x = 48,858.21