Finding the Fourth Proportional to 65,105.67, 89,855.40 and 41,234.57

Step by Step Solution

1. Step 1: Write the proportion equation
   65,105.67 : 89,855.40 = 41,234.57 : x
2. Step 2: Convert to fraction form
   65,105.67/89,855.40 = 41,234.57/x
3. Step 3: Cross multiply
   65,105.67x = 89,855.40 × 41,234.57
4. Step 4: Simplify right side
   65,105.67x = 3,705,148,781.18
5. Step 5: Solve for x
   x = 3,705,148,781.18/65,105.67
6. Step 6: Final answer
   x = 56,909.77