Finding the Fourth Proportional to 11,955.58, 16,499.31 and 6,650.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,955.58 : 16,499.31 = 6,650.50 : x
2. Step 2: Convert to fraction form
   11,955.58/16,499.31 = 6,650.50/x
3. Step 3: Cross multiply
   11,955.58x = 16,499.31 × 6,650.50
4. Step 4: Simplify right side
   11,955.58x = 109,728,661.16
5. Step 5: Solve for x
   x = 109,728,661.16/11,955.58
6. Step 6: Final answer
   x = 9,178.03