Finding the Fourth Proportional to 12,933.16, 17,854.58 and 8,706.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,933.16 : 17,854.58 = 8,706.45 : x
2. Step 2: Convert to fraction form
   12,933.16/17,854.58 = 8,706.45/x
3. Step 3: Cross multiply
   12,933.16x = 17,854.58 × 8,706.45
4. Step 4: Simplify right side
   12,933.16x = 155,450,008.04
5. Step 5: Solve for x
   x = 155,450,008.04/12,933.16
6. Step 6: Final answer
   x = 12,019.49