Finding the Fourth Proportional to 12,099.12, 16,698.64 and 7,386.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,099.12 : 16,698.64 = 7,386.16 : x
2. Step 2: Convert to fraction form
   12,099.12/16,698.64 = 7,386.16/x
3. Step 3: Cross multiply
   12,099.12x = 16,698.64 × 7,386.16
4. Step 4: Simplify right side
   12,099.12x = 123,338,826.82
5. Step 5: Solve for x
   x = 123,338,826.82/12,099.12
6. Step 6: Final answer
   x = 10,194.03