Finding the Fourth Proportional to 19,667.53, 27,146.91 and 12,862.54

Step by Step Solution

1. Step 1: Write the proportion equation
   19,667.53 : 27,146.91 = 12,862.54 : x
2. Step 2: Convert to fraction form
   19,667.53/27,146.91 = 12,862.54/x
3. Step 3: Cross multiply
   19,667.53x = 27,146.91 × 12,862.54
4. Step 4: Simplify right side
   19,667.53x = 349,178,215.75
5. Step 5: Solve for x
   x = 349,178,215.75/19,667.53
6. Step 6: Final answer
   x = 17,754.05