Finding the Fourth Proportional to 65,842.01, 90,910.83 and 40,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,842.01 : 90,910.83 = 40,383.50 : x
2. Step 2: Convert to fraction form
   65,842.01/90,910.83 = 40,383.50/x
3. Step 3: Cross multiply
   65,842.01x = 90,910.83 × 40,383.50
4. Step 4: Simplify right side
   65,842.01x = 3,671,297,730.58
5. Step 5: Solve for x
   x = 3,671,297,730.58/65,842.01
6. Step 6: Final answer
   x = 55,759.20