Finding the Fourth Proportional to 12,036.05, 16,606.35 and 8,260.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,036.05 : 16,606.35 = 8,260.10 : x
2. Step 2: Convert to fraction form
   12,036.05/16,606.35 = 8,260.10/x
3. Step 3: Cross multiply
   12,036.05x = 16,606.35 × 8,260.10
4. Step 4: Simplify right side
   12,036.05x = 137,170,111.64
5. Step 5: Solve for x
   x = 137,170,111.64/12,036.05
6. Step 6: Final answer
   x = 11,396.61