Finding the Fourth Proportional to 65,067.50, 89,802.78 and 41,196.40

Step by Step Solution

1. Step 1: Write the proportion equation
   65,067.50 : 89,802.78 = 41,196.40 : x
2. Step 2: Convert to fraction form
   65,067.50/89,802.78 = 41,196.40/x
3. Step 3: Cross multiply
   65,067.50x = 89,802.78 × 41,196.40
4. Step 4: Simplify right side
   65,067.50x = 3,699,550,867.00
5. Step 5: Solve for x
   x = 3,699,550,867.00/65,067.50
6. Step 6: Final answer
   x = 56,857.12