Finding the Fourth Proportional to 89,817.26, 123,909.62 and 65,902.41

Step by Step Solution

1. Step 1: Write the proportion equation
   89,817.26 : 123,909.62 = 65,902.41 : x
2. Step 2: Convert to fraction form
   89,817.26/123,909.62 = 65,902.41/x
3. Step 3: Cross multiply
   89,817.26x = 123,909.62 × 65,902.41
4. Step 4: Simplify right side
   89,817.26x = 8,165,942,250.67
5. Step 5: Solve for x
   x = 8,165,942,250.67/89,817.26
6. Step 6: Final answer
   x = 90,917.30