Finding the Fourth Proportional to 13,081.16, 19,619.58 and 3,845

Step by Step Solution

1. Step 1: Write the proportion equation
   13,081.16 : 19,619.58 = 3,845 : x
2. Step 2: Convert to fraction form
   13,081.16/19,619.58 = 3,845/x
3. Step 3: Cross multiply
   13,081.16x = 19,619.58 × 3,845
4. Step 4: Simplify right side
   13,081.16x = 75,437,285.10
5. Step 5: Solve for x
   x = 75,437,285.10/13,081.16
6. Step 6: Final answer
   x = 5,766.87