Finding the Fourth Proportional to 64,814.75, 89,451.56 and 40,940.27

Step by Step Solution

1. Step 1: Write the proportion equation
   64,814.75 : 89,451.56 = 40,940.27 : x
2. Step 2: Convert to fraction form
   64,814.75/89,451.56 = 40,940.27/x
3. Step 3: Cross multiply
   64,814.75x = 89,451.56 × 40,940.27
4. Step 4: Simplify right side
   64,814.75x = 3,662,170,673.41
5. Step 5: Solve for x
   x = 3,662,170,673.41/64,814.75
6. Step 6: Final answer
   x = 56,502.12