Finding the Fourth Proportional to 8,965.82, 12,375.43 and 5,981.64

Step by Step Solution

1. Step 1: Write the proportion equation
   8,965.82 : 12,375.43 = 5,981.64 : x
2. Step 2: Convert to fraction form
   8,965.82/12,375.43 = 5,981.64/x
3. Step 3: Cross multiply
   8,965.82x = 12,375.43 × 5,981.64
4. Step 4: Simplify right side
   8,965.82x = 74,025,405.52
5. Step 5: Solve for x
   x = 74,025,405.52/8,965.82
6. Step 6: Final answer
   x = 8,256.40