Finding the Fourth Proportional to 81,842.96, 112,453.78 and 65,046.80

Step by Step Solution

1. Step 1: Write the proportion equation
   81,842.96 : 112,453.78 = 65,046.80 : x
2. Step 2: Convert to fraction form
   81,842.96/112,453.78 = 65,046.80/x
3. Step 3: Cross multiply
   81,842.96x = 112,453.78 × 65,046.80
4. Step 4: Simplify right side
   81,842.96x = 7,314,758,536.90
5. Step 5: Solve for x
   x = 7,314,758,536.90/81,842.96
6. Step 6: Final answer
   x = 89,375.54