Finding the Fourth Proportional to 13,754.45, 18,981.59 and 7,785.99

Step by Step Solution

1. Step 1: Write the proportion equation
   13,754.45 : 18,981.59 = 7,785.99 : x
2. Step 2: Convert to fraction form
   13,754.45/18,981.59 = 7,785.99/x
3. Step 3: Cross multiply
   13,754.45x = 18,981.59 × 7,785.99
4. Step 4: Simplify right side
   13,754.45x = 147,790,469.92
5. Step 5: Solve for x
   x = 147,790,469.92/13,754.45
6. Step 6: Final answer
   x = 10,744.92