Finding the Fourth Proportional to 65,760.14, 90,754.53 and 40,266.38

Step by Step Solution

1. Step 1: Write the proportion equation
   65,760.14 : 90,754.53 = 40,266.38 : x
2. Step 2: Convert to fraction form
   65,760.14/90,754.53 = 40,266.38/x
3. Step 3: Cross multiply
   65,760.14x = 90,754.53 × 40,266.38
4. Step 4: Simplify right side
   65,760.14x = 3,654,356,467.59
5. Step 5: Solve for x
   x = 3,654,356,467.59/65,760.14
6. Step 6: Final answer
   x = 55,570.99