Finding the Fourth Proportional to 12,099.55, 16,704.32 and 8,065.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,099.55 : 16,704.32 = 8,065.30 : x
2. Step 2: Convert to fraction form
   12,099.55/16,704.32 = 8,065.30/x
3. Step 3: Cross multiply
   12,099.55x = 16,704.32 × 8,065.30
4. Step 4: Simplify right side
   12,099.55x = 134,725,352.10
5. Step 5: Solve for x
   x = 134,725,352.10/12,099.55
6. Step 6: Final answer
   x = 11,134.74