Finding the Fourth Proportional to 12,904.01, 17,801.39 and 8,180.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,904.01 : 17,801.39 = 8,180.09 : x
2. Step 2: Convert to fraction form
   12,904.01/17,801.39 = 8,180.09/x
3. Step 3: Cross multiply
   12,904.01x = 17,801.39 × 8,180.09
4. Step 4: Simplify right side
   12,904.01x = 145,616,842.42
5. Step 5: Solve for x
   x = 145,616,842.42/12,904.01
6. Step 6: Final answer
   x = 11,284.62