Finding the Fourth Proportional to 13,046.59, 19,569.48 and 3,185.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,046.59 : 19,569.48 = 3,185.92 : x
2. Step 2: Convert to fraction form
   13,046.59/19,569.48 = 3,185.92/x
3. Step 3: Cross multiply
   13,046.59x = 19,569.48 × 3,185.92
4. Step 4: Simplify right side
   13,046.59x = 62,346,797.72
5. Step 5: Solve for x
   x = 62,346,797.72/13,046.59
6. Step 6: Final answer
   x = 4,778.78