Finding the Fourth Proportional to 13,754.10, 18,980.72 and 7,786.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,754.10 : 18,980.72 = 7,786.92 : x
2. Step 2: Convert to fraction form
   13,754.10/18,980.72 = 7,786.92/x
3. Step 3: Cross multiply
   13,754.10x = 18,980.72 × 7,786.92
4. Step 4: Simplify right side
   13,754.10x = 147,801,309.25
5. Step 5: Solve for x
   x = 147,801,309.25/13,754.10
6. Step 6: Final answer
   x = 10,745.98