Finding the Fourth Proportional to 13,074.58, 18,047.55 and 7,769.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,074.58 : 18,047.55 = 7,769.37 : x
2. Step 2: Convert to fraction form
   13,074.58/18,047.55 = 7,769.37/x
3. Step 3: Cross multiply
   13,074.58x = 18,047.55 × 7,769.37
4. Step 4: Simplify right side
   13,074.58x = 140,218,093.54
5. Step 5: Solve for x
   x = 140,218,093.54/13,074.58
6. Step 6: Final answer
   x = 10,724.48