Finding the Fourth Proportional to 12,185.52, 16,815.78 and 7,993.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,185.52 : 16,815.78 = 7,993.50 : x
2. Step 2: Convert to fraction form
   12,185.52/16,815.78 = 7,993.50/x
3. Step 3: Cross multiply
   12,185.52x = 16,815.78 × 7,993.50
4. Step 4: Simplify right side
   12,185.52x = 134,416,937.43
5. Step 5: Solve for x
   x = 134,416,937.43/12,185.52
6. Step 6: Final answer
   x = 11,030.87