Finding the Fourth Proportional to 8,570.82, 12,849.73 and 5,931.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,570.82 : 12,849.73 = 5,931.32 : x
2. Step 2: Convert to fraction form
   8,570.82/12,849.73 = 5,931.32/x
3. Step 3: Cross multiply
   8,570.82x = 12,849.73 × 5,931.32
4. Step 4: Simplify right side
   8,570.82x = 76,215,781.47
5. Step 5: Solve for x
   x = 76,215,781.47/8,570.82
6. Step 6: Final answer
   x = 8,892.47