Finding the Fourth Proportional to 50,939.98, 76,406.37 and 13,499.23

Step by Step Solution

1. Step 1: Write the proportion equation
   50,939.98 : 76,406.37 = 13,499.23 : x
2. Step 2: Convert to fraction form
   50,939.98/76,406.37 = 13,499.23/x
3. Step 3: Cross multiply
   50,939.98x = 76,406.37 × 13,499.23
4. Step 4: Simplify right side
   50,939.98x = 1,031,426,712.57
5. Step 5: Solve for x
   x = 1,031,426,712.57/50,939.98
6. Step 6: Final answer
   x = 20,247.88