Finding the Fourth Proportional to 13,179.57, 19,764.55 and 3,817.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,179.57 : 19,764.55 = 3,817.05 : x
2. Step 2: Convert to fraction form
   13,179.57/19,764.55 = 3,817.05/x
3. Step 3: Cross multiply
   13,179.57x = 19,764.55 × 3,817.05
4. Step 4: Simplify right side
   13,179.57x = 75,442,275.58
5. Step 5: Solve for x
   x = 75,442,275.58/13,179.57
6. Step 6: Final answer
   x = 5,724.18