Finding the Fourth Proportional to 14,667.68, 21,948.96 and 12,700.09

Step by Step Solution

1. Step 1: Write the proportion equation
   14,667.68 : 21,948.96 = 12,700.09 : x
2. Step 2: Convert to fraction form
   14,667.68/21,948.96 = 12,700.09/x
3. Step 3: Cross multiply
   14,667.68x = 21,948.96 × 12,700.09
4. Step 4: Simplify right side
   14,667.68x = 278,753,767.41
5. Step 5: Solve for x
   x = 278,753,767.41/14,667.68
6. Step 6: Final answer
   x = 19,004.63