Finding the Fourth Proportional to 21,062.34, 31,566.24 and 8,567.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,062.34 : 31,566.24 = 8,567.82 : x
2. Step 2: Convert to fraction form
   21,062.34/31,566.24 = 8,567.82/x
3. Step 3: Cross multiply
   21,062.34x = 31,566.24 × 8,567.82
4. Step 4: Simplify right side
   21,062.34x = 270,453,862.40
5. Step 5: Solve for x
   x = 270,453,862.40/21,062.34
6. Step 6: Final answer
   x = 12,840.64