Finding the Fourth Proportional to 65,209.98, 89,990.15 and 38,353.62

Step by Step Solution

1. Step 1: Write the proportion equation
   65,209.98 : 89,990.15 = 38,353.62 : x
2. Step 2: Convert to fraction form
   65,209.98/89,990.15 = 38,353.62/x
3. Step 3: Cross multiply
   65,209.98x = 89,990.15 × 38,353.62
4. Step 4: Simplify right side
   65,209.98x = 3,451,448,016.84
5. Step 5: Solve for x
   x = 3,451,448,016.84/65,209.98
6. Step 6: Final answer
   x = 52,928.22