Finding the Fourth Proportional to 13,674.27, 18,870.72 and 7,706.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,674.27 : 18,870.72 = 7,706.04 : x
2. Step 2: Convert to fraction form
   13,674.27/18,870.72 = 7,706.04/x
3. Step 3: Cross multiply
   13,674.27x = 18,870.72 × 7,706.04
4. Step 4: Simplify right side
   13,674.27x = 145,418,466.83
5. Step 5: Solve for x
   x = 145,418,466.83/13,674.27
6. Step 6: Final answer
   x = 10,634.46