Finding the Fourth Proportional to 12,192.12, 16,826.54 and 7,412.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,192.12 : 16,826.54 = 7,412.31 : x
2. Step 2: Convert to fraction form
   12,192.12/16,826.54 = 7,412.31/x
3. Step 3: Cross multiply
   12,192.12x = 16,826.54 × 7,412.31
4. Step 4: Simplify right side
   12,192.12x = 124,723,493.65
5. Step 5: Solve for x
   x = 124,723,493.65/12,192.12
6. Step 6: Final answer
   x = 10,229.84