Finding the Fourth Proportional to 21,118.50, 31,676.52 and 5,536.11

Step by Step Solution

1. Step 1: Write the proportion equation
   21,118.50 : 31,676.52 = 5,536.11 : x
2. Step 2: Convert to fraction form
   21,118.50/31,676.52 = 5,536.11/x
3. Step 3: Cross multiply
   21,118.50x = 31,676.52 × 5,536.11
4. Step 4: Simplify right side
   21,118.50x = 175,364,699.14
5. Step 5: Solve for x
   x = 175,364,699.14/21,118.50
6. Step 6: Final answer
   x = 8,303.84