Finding the Fourth Proportional to 12,671.49, 19,006.01 and 3,904.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,671.49 : 19,006.01 = 3,904.05 : x
2. Step 2: Convert to fraction form
   12,671.49/19,006.01 = 3,904.05/x
3. Step 3: Cross multiply
   12,671.49x = 19,006.01 × 3,904.05
4. Step 4: Simplify right side
   12,671.49x = 74,200,328.07
5. Step 5: Solve for x
   x = 74,200,328.07/12,671.49
6. Step 6: Final answer
   x = 5,855.69