Finding the Fourth Proportional to 12,672.47, 17,477.39 and 9,493.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,672.47 : 17,477.39 = 9,493.25 : x
2. Step 2: Convert to fraction form
   12,672.47/17,477.39 = 9,493.25/x
3. Step 3: Cross multiply
   12,672.47x = 17,477.39 × 9,493.25
4. Step 4: Simplify right side
   12,672.47x = 165,917,168.96
5. Step 5: Solve for x
   x = 165,917,168.96/12,672.47
6. Step 6: Final answer
   x = 13,092.72