Finding the Fourth Proportional to 40,128.54, 59,786.00 and 38,145.66

Step by Step Solution

1. Step 1: Write the proportion equation
   40,128.54 : 59,786.00 = 38,145.66 : x
2. Step 2: Convert to fraction form
   40,128.54/59,786.00 = 38,145.66/x
3. Step 3: Cross multiply
   40,128.54x = 59,786.00 × 38,145.66
4. Step 4: Simplify right side
   40,128.54x = 2,280,576,238.03
5. Step 5: Solve for x
   x = 2,280,576,238.03/40,128.54
6. Step 6: Final answer
   x = 56,831.78