Finding the Fourth Proportional to 13,103.60, 18,081.78 and 7,797.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,103.60 : 18,081.78 = 7,797.56 : x
2. Step 2: Convert to fraction form
   13,103.60/18,081.78 = 7,797.56/x
3. Step 3: Cross multiply
   13,103.60x = 18,081.78 × 7,797.56
4. Step 4: Simplify right side
   13,103.60x = 140,993,764.46
5. Step 5: Solve for x
   x = 140,993,764.46/13,103.60
6. Step 6: Final answer
   x = 10,759.93