Finding the Fourth Proportional to 12,820.14, 17,667.36 and 8,834.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,820.14 : 17,667.36 = 8,834.04 : x
2. Step 2: Convert to fraction form
   12,820.14/17,667.36 = 8,834.04/x
3. Step 3: Cross multiply
   12,820.14x = 17,667.36 × 8,834.04
4. Step 4: Simplify right side
   12,820.14x = 156,074,164.93
5. Step 5: Solve for x
   x = 156,074,164.93/12,820.14
6. Step 6: Final answer
   x = 12,174.14