Finding the Fourth Proportional to 12,904, 19,359.24 and 3,670

Step by Step Solution

1. Step 1: Write the proportion equation
   12,904 : 19,359.24 = 3,670 : x
2. Step 2: Convert to fraction form
   12,904/19,359.24 = 3,670/x
3. Step 3: Cross multiply
   12,904x = 19,359.24 × 3,670
4. Step 4: Simplify right side
   12,904x = 71,048,410.80
5. Step 5: Solve for x
   x = 71,048,410.80/12,904
6. Step 6: Final answer
   x = 5,505.92