Finding the Fourth Proportional to 13,206.54, 19,810.71 and 3,846.57

Step by Step Solution

1. Step 1: Write the proportion equation
   13,206.54 : 19,810.71 = 3,846.57 : x
2. Step 2: Convert to fraction form
   13,206.54/19,810.71 = 3,846.57/x
3. Step 3: Cross multiply
   13,206.54x = 19,810.71 × 3,846.57
4. Step 4: Simplify right side
   13,206.54x = 76,203,282.76
5. Step 5: Solve for x
   x = 76,203,282.76/13,206.54
6. Step 6: Final answer
   x = 5,770.12