Finding the Fourth Proportional to 12,800.46, 17,663.37 and 9,445.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,800.46 : 17,663.37 = 9,445.08 : x
2. Step 2: Convert to fraction form
   12,800.46/17,663.37 = 9,445.08/x
3. Step 3: Cross multiply
   12,800.46x = 17,663.37 × 9,445.08
4. Step 4: Simplify right side
   12,800.46x = 166,831,942.72
5. Step 5: Solve for x
   x = 166,831,942.72/12,800.46
6. Step 6: Final answer
   x = 13,033.28