Finding the Fourth Proportional to 13,086.18, 19,628.91 and 3,225.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,086.18 : 19,628.91 = 3,225.42 : x
2. Step 2: Convert to fraction form
   13,086.18/19,628.91 = 3,225.42/x
3. Step 3: Cross multiply
   13,086.18x = 19,628.91 × 3,225.42
4. Step 4: Simplify right side
   13,086.18x = 63,311,478.89
5. Step 5: Solve for x
   x = 63,311,478.89/13,086.18
6. Step 6: Final answer
   x = 4,838.04