Finding the Fourth Proportional to 8,864.56, 12,144.52 and 8,532.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,864.56 : 12,144.52 = 8,532.40 : x
2. Step 2: Convert to fraction form
   8,864.56/12,144.52 = 8,532.40/x
3. Step 3: Cross multiply
   8,864.56x = 12,144.52 × 8,532.40
4. Step 4: Simplify right side
   8,864.56x = 103,621,902.45
5. Step 5: Solve for x
   x = 103,621,902.45/8,864.56
6. Step 6: Final answer
   x = 11,689.46