Finding the Fourth Proportional to 20,877.82, 31,297.13 and 7,017.10

Step by Step Solution

1. Step 1: Write the proportion equation
   20,877.82 : 31,297.13 = 7,017.10 : x
2. Step 2: Convert to fraction form
   20,877.82/31,297.13 = 7,017.10/x
3. Step 3: Cross multiply
   20,877.82x = 31,297.13 × 7,017.10
4. Step 4: Simplify right side
   20,877.82x = 219,615,090.92
5. Step 5: Solve for x
   x = 219,615,090.92/20,877.82
6. Step 6: Final answer
   x = 10,519.06