Finding the Fourth Proportional to 8,570.98, 12,835.71 and 5,931.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,570.98 : 12,835.71 = 5,931.09 : x
2. Step 2: Convert to fraction form
   8,570.98/12,835.71 = 5,931.09/x
3. Step 3: Cross multiply
   8,570.98x = 12,835.71 × 5,931.09
4. Step 4: Simplify right side
   8,570.98x = 76,129,751.22
5. Step 5: Solve for x
   x = 76,129,751.22/8,570.98
6. Step 6: Final answer
   x = 8,882.27