Finding the Fourth Proportional to 65,756.58, 90,749.61 and 40,262.82

Step by Step Solution

1. Step 1: Write the proportion equation
   65,756.58 : 90,749.61 = 40,262.82 : x
2. Step 2: Convert to fraction form
   65,756.58/90,749.61 = 40,262.82/x
3. Step 3: Cross multiply
   65,756.58x = 90,749.61 × 40,262.82
4. Step 4: Simplify right side
   65,756.58x = 3,653,835,212.50
5. Step 5: Solve for x
   x = 3,653,835,212.50/65,756.58
6. Step 6: Final answer
   x = 55,566.08