Finding the Fourth Proportional to 12,192.96, 16,801.92 and 8,460.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,192.96 : 16,801.92 = 8,460.48 : x
2. Step 2: Convert to fraction form
   12,192.96/16,801.92 = 8,460.48/x
3. Step 3: Cross multiply
   12,192.96x = 16,801.92 × 8,460.48
4. Step 4: Simplify right side
   12,192.96x = 142,152,308.12
5. Step 5: Solve for x
   x = 142,152,308.12/12,192.96
6. Step 6: Final answer
   x = 11,658.56