Finding the Fourth Proportional to 8,787.47, 12,131.10 and 5,969.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,787.47 : 12,131.10 = 5,969.75 : x
2. Step 2: Convert to fraction form
   8,787.47/12,131.10 = 5,969.75/x
3. Step 3: Cross multiply
   8,787.47x = 12,131.10 × 5,969.75
4. Step 4: Simplify right side
   8,787.47x = 72,419,573.57
5. Step 5: Solve for x
   x = 72,419,573.57/8,787.47
6. Step 6: Final answer
   x = 8,241.24