Finding the Fourth Proportional to 36,020.50, 49,714.05 and 21,116.50

Step by Step Solution

1. Step 1: Write the proportion equation
   36,020.50 : 49,714.05 = 21,116.50 : x
2. Step 2: Convert to fraction form
   36,020.50/49,714.05 = 21,116.50/x
3. Step 3: Cross multiply
   36,020.50x = 49,714.05 × 21,116.50
4. Step 4: Simplify right side
   36,020.50x = 1,049,786,736.83
5. Step 5: Solve for x
   x = 1,049,786,736.83/36,020.50
6. Step 6: Final answer
   x = 29,144.15