Finding the Fourth Proportional to 12,669.18, 19,005.82 and 3,904.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,669.18 : 19,005.82 = 3,904.09 : x
2. Step 2: Convert to fraction form
   12,669.18/19,005.82 = 3,904.09/x
3. Step 3: Cross multiply
   12,669.18x = 19,005.82 × 3,904.09
4. Step 4: Simplify right side
   12,669.18x = 74,200,459.80
5. Step 5: Solve for x
   x = 74,200,459.80/12,669.18
6. Step 6: Final answer
   x = 5,856.77