Finding the Fourth Proportional to 12,667.48, 18,995.40 and 5,267.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.48 : 18,995.40 = 5,267.53 : x
2. Step 2: Convert to fraction form
   12,667.48/18,995.40 = 5,267.53/x
3. Step 3: Cross multiply
   12,667.48x = 18,995.40 × 5,267.53
4. Step 4: Simplify right side
   12,667.48x = 100,058,839.36
5. Step 5: Solve for x
   x = 100,058,839.36/12,667.48
6. Step 6: Final answer
   x = 7,898.87