Finding the Fourth Proportional to 65,256.91, 90,046.49 and 39,754.01

Step by Step Solution

1. Step 1: Write the proportion equation
   65,256.91 : 90,046.49 = 39,754.01 : x
2. Step 2: Convert to fraction form
   65,256.91/90,046.49 = 39,754.01/x
3. Step 3: Cross multiply
   65,256.91x = 90,046.49 × 39,754.01
4. Step 4: Simplify right side
   65,256.91x = 3,579,709,090.27
5. Step 5: Solve for x
   x = 3,579,709,090.27/65,256.91
6. Step 6: Final answer
   x = 54,855.63