Finding the Fourth Proportional to 23,277.72, 32,123.36 and 12,667.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,277.72 : 32,123.36 = 12,667.28 : x
2. Step 2: Convert to fraction form
   23,277.72/32,123.36 = 12,667.28/x
3. Step 3: Cross multiply
   23,277.72x = 32,123.36 × 12,667.28
4. Step 4: Simplify right side
   23,277.72x = 406,915,595.66
5. Step 5: Solve for x
   x = 406,915,595.66/23,277.72
6. Step 6: Final answer
   x = 17,480.90