Finding the Fourth Proportional to 20,658.51, 30,987.49 and 5,076.27

Step by Step Solution

1. Step 1: Write the proportion equation
   20,658.51 : 30,987.49 = 5,076.27 : x
2. Step 2: Convert to fraction form
   20,658.51/30,987.49 = 5,076.27/x
3. Step 3: Cross multiply
   20,658.51x = 30,987.49 × 5,076.27
4. Step 4: Simplify right side
   20,658.51x = 157,300,865.86
5. Step 5: Solve for x
   x = 157,300,865.86/20,658.51
6. Step 6: Final answer
   x = 7,614.34